The Best Way to Find Free Old Maps at DavidRumsey.com

Our ability to find our ancestors is rooted in two important pieces of information: the locations where they lived and the time frames in which they lived there. This means that old maps are essential to our genealogy research.  

The good news is that there is an abundance of free digitized old maps available online. One of the best resources is the David Rumsey Map Collection website. There you will find over 100,000 free digitized historic maps. These maps span the globe and centuries.  They are perfect for bringing geographic perspective to your family tree.

Best way to find old maps for genealogy

Elevenses with Lisa Show Notes

In this episode 36 of my free webinar video series Elevenses with Lisa I’ll show you how to navigate this ever-expanding free website. Watch the video and then follow along with the show notes in this article. Here you’ll find answers to questions such as:

  • What’s the best way to find maps at David Rumsey’s map website?
  • What is the difference between the search tools (Luna Viewer and MapRank Search)?
  • What are the advanced search techniques for finding the old maps?
  • How can I download maps at DavidRumsey.com?
  • Is it OK to use the maps from DavidRumsey.com in my family history projects?

Rumsey Historical Maps in Google Earth

As we discussed in Ways to Use Google Earth for Genealogy (Elevenses with Lisa episode 12) there are approximately 120 Rumsey old maps available for free in Google Earth. You can find them in the Layers Panel under Gallery.  Each map is already georeferenced as an overlay for you.

ways to use google earth for genealogy with Lisa Louise Cooke

Click image to watch the video and read the article on ways to use Google Earth for genealogy

You can also create your own overlays in Google Earth using Rumsey Maps or digitized maps from other sources. I cover this step-by-step in chapter 16 of my book The Genealogist’s Google Toolbox.

Best Strategies for Finding Free Old Maps

Once you’ve exhausted the few hundred old maps in Google Earth, head to the David Rumsey Map Collection website. Rumsey’s collection includes over 150,000 map, over 100,000 of which have been digitized and are available for free on his website. 

Copyright and Use Permission

You will probably be anxious to use these wonderful old maps in a variety of ways. The Rumsey website provides clear direction on copyright and use permission. Go to: DavidRumsey.com > Home Page > About > Copyright and Permissions.

The good news is that generally speaking, you are free to download and use the digitized maps for your own personal use.

The Best Way to View the Maps

There are several ways to view maps:

  • The Luna Viewer: Browse and search 100,000+ maps
  • The GeoReferencer: Help georeferenced maps, compare maps overlays
  • MapRank Search: Browse & search 6000 maps by time & place
  • Google Earth: 120 maps in the Layers panel, 140 can be added
  • Google Maps: 120 maps included
  • Second Life: View some in 3 dimensions and at a huge scale. Location: Rumsey Map Islands. Includes a welcome center with hundreds of maps, and a 600 meter tall map cylinder showing hundreds of maps.
  • The Collections Ticker: Pop-out distraction!
  • Insight Java Client: Downloadable workspace

Of this list, the best two tools to user are:

  1. The Luna Viewer: Browse and search 100,000+ maps
  2. MapRank Search: Browse & search 6000 maps by time & place

I will show you how to use each. Note that in these examples we will be using a computer to search the site rather than a mobile device or tablet.

The Luna Viewer: How to browse & search the maps

In the main menu under View Collection select the Luna Viewer. Under Luna Viewer click the Launch Luna Viewer button.

Luna Viewer at David Rumsey Map Collection

The Luna Viewer at David Rumsey Map Collection

Tips for keyword searching:

  • In most cases it helps to start with a fairly broad search to see the full range of available maps
  • Be cautious with abbreviations. “MN” does not return “Minn” or “Minnestota”.
  • Advance search provides you with the use of full Boolean operators like “and,” “or,” “greater than,” “contains,” and others.
  • After a search, to return to the full collection, click on “show all” under the search button.

Let’s look at an example of using the keyword search in tandem with the Refine column. If you search for New York City, you will be searching all of the data associated with the maps. Since many maps may have been published in New York City, you will likely see many maps for other areas. You can improve this search by going to the Refine column and under Where clicking on New York City.

The Refine column will show you the first five options in each category (What, Where, Who, When). Click More to reveal all of the additional refining options in that category.

Refine map search David Rumsey

Click More to see all refining options in the Luna Viewer

From the returned results, click a map to view it.

You can select multiple items in the Refine column to filter more narrowly. Remove a filter by clicking it under Remove at the top of the Refine column.

Like genealogical records, old maps may include several pages. Look above the blue BUY PRINT button to see the number of Related maps. In my example of a map of the 1939 World’s Fair in New York City, there were two map pages available. Click Related to display all of the available pages.

David Rumsey map related results

Click the Related link to view all related map pages.

DavidRumsey.com Advanced Search

The Advanced Search feature can be found in two locations:

  • Inside the search box – click your mouse in the box and select Advanced Search from the drop-down list
  • At the bottom of the Refine column on the left side of the screen.

Advanced Search gives you more control over how you search. Let’s look at an example by searching for Sanborn fire insurance maps. 

Searching for Sanborn Fire Insurance Maps

The David Rumsey Map Collection website includes many Sanborn Fire Insurance maps. These maps were created for insurance purposes and provide an incredible amount of detail about individual buildings and dwellings in a given neighborhood.

I recommend using the Advanced Search feature to search for these maps. This is because over the years the name of the company as publisher changed.

How to Find Sanborn Maps:

  1. Click on Advanced Search at the bottom of the Refine column
  2. In the “find all of these words” section, click Fields and select Publisher
  3. Type in Sanborn
  4. On the results page, go to the Refine column and Who click More
  5. There are at least six variations of the Sanborn publishing name.

Old Map books and atlases often include valuable historical text often called historical sketches. You can find these using the Advanced search. Search for the exact phrase Historical Sketch. Run this search and then in the Refine column under Where select an area of interest.

How to Download Maps from DavidRumsey.com

  1. Click the map from the results list
  2. On the map’s dedicated page click the EXPORT button at the top of the page.
  3. Select the appropriate size from the drop-down list. (Larger maps may take a few moments to download)
  4. Typically the maps will download to the Downloads folder on your computer

Tips for Selecting Download (Export) Map Size:
Save space on your computer and future headaches by selecting the correct size map for your use. If you plan on using the map to create an overlay or create a nice large print, select the largest size possible ( I recommend at least Extra Large for creating map overlays in the Google Earth.) This will ensure that the map doesn’t appear fuzzy when you Zoom in. High-resolution is also recommended when printing. For example, if you plan on including the map in a book about your family’s history (for personal use, not for resale) a high-resolution map will print crisp and clear. Maps for use on the web or something like a PowerPoint presentation would be fine at lower resolutions.

MapRank Search at DavidRumsey.com

The MapRank Search “app” at the David Rumsey Map Collection website allows you to browse & search 6000 maps by two important criteria: Time & Place.

There are two ways to find the MapRank Search:

  1. In the main menu under View Collection click MapRank Search. Scroll to the bottom of the page and click the Launch MapRank Search
  2. Scroll to the bottom of the home page until you see Featured App – MapRank Search, and click the Launch MapRank Search

How to Find Maps Using MapRank Search:

  1. Start with entering the location name in the search box (in the upper right corner) and click the Find a Place
  2. The location will appear on the modern-day map. The old maps that match the location will appear in the column on the right, prioritized starting with the map that most closely matches what you searched.
  3. Below the modern-day map, move the time slider levers to narrow in on the desired time frame.
  4. Note that the old maps in the results column will change based on the specified time frame.
  5. Broaden the location if desired by zooming out a bit on the modern-day map. Note that the results list will change as you zoom.
  6. Hover your mouse over a map in the results list and notice that a reddish-brown box will appear the selected map and will also appear on the modern-day map. This indicates the area of the map that the old map covers. This will aid you in selecting the map that will suit your needs.
  7. Click a map from the results list and it will open in a new browser tab, although some maps will appear as an overlay on the modern-day map. In that case, click the Luna Viewer button to go to the page where the map can be downloaded.

How to Compare Modern-day Maps with Old Maps

Whether you have found the map by searching with the Luna Viewer or the MapRank Search you will eventually find yourself on the page where the single map is displayed. On the left is the source information.

In the upper right corner of the screen click the View in GeoReferencer button. You will be taken to a page where you can view the old map overlayed on the modern-day map. In the upper right corner move the slider to make the old map transparent so that you can compare between the two maps.

Recap: Comparing the Two Best Search Tools at DavidRumsey.com

Luna Viewer:
– 100,000 maps
– Search, then refine
– Sometimes glitchy interface

MapRank Search:
– 6000+ maps
– More control with time slider & map
– Map results list ranked by closest coverage

Live Chat Q&A: Answers to Your Questions About David Rumsey Maps

One of the advantages of tuning into the live broadcast of each Elevenses with Lisa show is participating in the Live Chat and asking your questions.

From Megan: What is the difference between Google Earth and My Maps?
From Lisa: Google Earth is a free software download. This is where I create what I call family history tours. They are a collection of data points and media that come together as a research tool and storytelling tool. My Maps are created in Google Maps. I prefer creating in Google Earth because it offers more tools and options, and it’s where I keep all my mapping work. 

From Gwynn: Heard in the past Java Client might have security holes has this been fixed?
From Lisa: Read more about the latest on Java Client at the website’s FAQ page

From GeneBuds: Must set up account to use Luna Viewer?
From Lisa: No, you don’t have to have an account to use the Luna Viewer. “Registering for an account allows you to save your work and preferences, search external media, create Media Groups and Presentations, customize your settings, create annotations, and upload your own content.” As I mentioned in the video, I prefer to do all my work in Google Earth. 

From Gwynn: Sanborn Fire Maps: Where do I find the Key to the symbols? Are they the same from year to year or do they change?
From Lisa: Here’s the main resource page for Sanborn maps at the Library of Congress. You will find specific information about interpreting the maps including Keys and Colors here.

From Karen: ​If you are specifically looking for plat maps for our US farmers would you put the word plat in the search field?
From Lisa: I would use the Advanced Search and enter the word plat in the “Find all these words” box. Click the plus sign to add an additional “Find all these words” field and type in the name of the location. If that doesn’t deliver the desired result, omit the location and just search on the word plant. Then, on the results page, go to the Refine column and under Where click More. Then you have a nice list to browse. You might spot a map that includes your location. TIP: When you find a result, be sure to check the Related number at the top of the page so that you didn’t miss any additional pages of the map. 

From Mark: Lisa and Bill, is the intro music something that you all wrote?
From Lisa and Bill: No, it’s by a talented musician named Dan Lebowitz. Our goal this year was to learn to play it ourselves 🙂 We’re glad you love it as much as we do!

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Sanborn Fire Insurance Maps for Genealogy

Show Notes: Discover Sanborn Fire Insurance maps with Julie Stoner of the Geography and Map Division of the Library of Congress. Learn the best search strategies, how to download the Sanborn maps for free, and hidden online resources! Sanborn maps are an invaluable tool for family history because they provide an up-close look at the places where your ancestors lived. 

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Show Notes

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Sanborn fire insurance maps at the library of congress for genealogy

Sanborn Fire Insurance Maps for Genealogy

(This interview has been minimally edited for clarity.)

Lisa: Today we’re talking about Sanborn fire insurance maps and how we can use them for genealogy. They’re available at the Library of Congress. Here to tell us more about that is Julie Stoner. She’s a reference specialist in the geography and map division of the Library of Congress.

Julie: Thanks so much, Lisa. Happy to be here.

I adore the Sanborn fire insurance maps because they give us such a unique perspective and view of our ancestors’ world.

What are Sanborn Fire Insurance Maps?

Start us off and tell us exactly what are Sanborn fire insurance maps?

Julie: The Sanborn fire insurance maps are a uniform series of large scale maps. They date starting from about 1867, though, they mainly start in the 1880s, and they run mostly through the 1950s. There are some from later dates as well.

It was a company started by a man named D.A. Sanborn. He was drawing these maps at a building level to sell to fire insurance companies so that they could then assess how much to charge people for the fire risk of their building. We use them for a lot more things today than they were originally intended for because they show the building level details of a city.

We have over 12,000 cities and towns represented. Some smaller towns may only have a few sheets. But the larger cities may have multiple volumes. They would go back and create a new map every 10 or 15 years or so. Therefore, you can really see how a city changed over time and how the buildings changed over time, and how a neighborhood was built. These maps can be used for all sorts of things now.

Lisa: I love the fact that they have such detail and are really unique. There really aren’t any other maps quite like these, are there?

Julie: It’s true. We do have other maps, like real estate atlases, and things like that of maybe a few cities, here and there, like Washington D.C. or New York. We have land ownership maps, but nothing of quite this scale or detail.

Sanborn Fire Insurance Maps Online Collection

Lisa: Let’s talk about the scale of the map collection. At the Library of Congress you have the physical map collection, and then there’s the collection that we can access online. Tell us a little bit about the scope of the collection? And does it vary whether we’re online or in person?

Julie: It does vary a bit because of copyright restrictions. As I said, we have about 12,000 different cities and towns represented, that equals over 700,000 map sheets. So, that’s a that’s a lot of sheets of maps. And a few years ago, the library, in conjunction with a third party, took on a project to scan all of the public domain Sanborn maps. Public domain means that there are no copyright restrictions on those maps. So that included anything published before 1922 at that point. Then anything published before 1964, in which the copyright wasn’t renewed. The library took on this project to scan all those, and those are completed and are all online on our website and can be downloaded.

That copyright date is now a rolling date. This means that there are now maps between 1923 and 1926 that are public domain that we haven’t scanned yet, and we are working to get those scan to get those online. And as soon as new maps come into the public domain, we hope to process them and upload those when that happens. So, a very large chunk of the Sanborn maps are online. But, if they are not, you can always come and see them in person as well, because we do have the physical copies.

Sanborn Map Resolution

Lisa: You mentioned that the part that the part of the collection that is in the public domain is available online. And they’re downloadable. Are those pretty high-resolution maps, so that we’ll be able to use those in our own genealogy projects?

Julie: For sure! They are definitely high resolution. The library scans them at the highest resolution that we can and so there’s actually a variety of files that you can download. We have JPEG images, which are a bit lower quality but are good for something like PowerPoints or computer screens. And then we have our TIFF files, which are the largest high-resolution files which have. These are a good size for printing.

Lisa: I know that the online collection, which I think most of our folks would be interested in accessing from home easily, is at the Library of Congress at the loc.gov website at https://www.loc.gov/collections/sanborn-maps. Tell us a little bit about what we’ll find there on the website.

Fire Insurance Map Research Guide at the Library of Congress

Julie: Sure, so that link that you said is a landing page for our digital images. Let’s start with the fire insurance map research guide that we have that is about our fire insurance maps in general, not just the Sandborn maps. There are a few other companies though Sanborn took those over in time. They became pretty much became the only one.

On the research guide page, there’s a large section on the left side of the page that says Sanborn Fire Insurance Company Maps. If you click on that, you will find a number of links to help you with your research of the Sanborn Fire Insurance Company maps.

Sanborn fire insurance map resource guide

The Research Guide at the Library of Congress

How to Search for Sanborn Maps

I want to point out the easiest way to find the maps. Under the searching for Sanborn Maps tab you will see some information including a link to our Sanborn Fire Insurance Map Checklist. This is the easiest way to find the maps that you’re looking for. It will take you to our fire insurance map index. And this is the easiest way to search for maps.

It’s so large that it can be a little overwhelming. This checklist is taken from a 1981 publication produced by the library that lists all of the Sanborn maps that we have in our collection. While the library has the largest collection of Sanborn maps in the world, we do not claim to have every one ever made. We are missing some. For example, if you found a map at your historical society that is not on this list, it just means that we don’t have it in our physical collection. Not that it doesn’t exist.

You can search by state at the Map Index. If you click on U.S. from the drop-down menu, you’ll find all the states. Scroll through and pick your state. I live in Virginia and I was born here, so I will search for Virginia. I will then see a list of hyperlinks with all of the cities available with Sanborn maps in the collection. Scroll through here and click on the city of interest. For example, if you want to click on Richmond you will get the list of Richmond maps here at the library. It’s a table and on the far left side you will see the date of the volume. And then you will see the number of sheets in that volume. Other geographic areas included sometimes in larger cities. The Sanborn Map Company would pick some areas farther outside the city to include in that volume, perhaps a few sheets. You’ll see a column called Comments which is mostly about the physical binding of the maps your library. And then a column called Website. If you click on the website link it will take you to the digital images.

Why are there multiple dates on Sanborn maps?

And just one other note about the date. If you look at the date, sometimes it can look a little confusing because you’ll see two dates listed. For example, volume 1924 through April 1950. So what’s happening here is that starting in the mostly the 40s and 50s, the Sanborn Map Company, decided it was faster, instead of making an entirely new map to cut and paste over an old map. So, this 1924 date is the face of the map. The 1950 date is the last time that they updated it. So, it’s really showing a 1950 era Richmond, but they’re just using that base map of 1924.

Downloading Sanborn Fire Insurance Maps

When you click through to these digital images, we can download them. Click on an image and you will see in the center of the screen the map that you can scroll in and out of, and then at the bottom underneath the image, you’ll see the download link. You’ll find that there are several options for JPEG images, a GIF file, and then the high resolution tiff file. It’s pretty great. We’re very happy that a lot of these are now online for researchers to use from outside of Washington, DC.

What do the colors and symbols mean on Sanborn maps?

Lisa: And when you look at these maps, there’s a lot of detail. There’s color coding, and all kinds of markings. Do you have resources on the website to help people interpret the map?

Julie: Sure we do. The best method first is to look at the first page of a volume. If you zoom in you will see that there is a map key. It’s a box usually at the top or the bottom of the sheet. That is going to show you what the colors and the symbols in each volume mean.

Different cities have different unique characteristics, and the Sanborn Map Company would map those. So, not every map is going to have every symbol. The key at the front is a really good way to see what specifically applies to that volume.

For example, pink typically means brick. Yellow typically means it was made out of frame, or wood. Green can change. I’ve seen it as cement, I’ve seen it as special, not exactly sure sometimes what that means. The colors indicate the type of building materials, and then you will see what the hash marks or the circles or the x’s mean, in various buildings. There are a lot of abbreviations that the Sanborn Map Company uses as well. D typically stands for dwelling, S for store.

If you want to see an entire list of the symbols, we have a great resource back on our research guides page. Go back to the research guide to the Interpreting Sanborn Maps section on the left. That’s going to tell you a lot more about the colors, the symbols, things like that.

If you go to the Internet Resources, under Websites, there’s a list called Sanborn Map Abbreviations and Legend created by Environmental Data Resources, who are the copyright holders of the Sanborn maps. They’ve created this great PDF that shows the most common abbreviations and symbols used to the Sanborn fire insurance maps. It’s pretty comprehensive.

Sanborn Fire Insurance Map Search Strategies

Lisa: That’s a fantastic resource! If we do the search and we don’t see the town that we have in mind in that list, is there another way or any other way to search to figure out if it is part of a bigger map? Perhaps it’s just too small of a town to have its own map?

Julie: That’s a great question. If it’s a really small town and you don’t see it on the list, the other thing you can do is search back on the index page. The main index page under the full text field. For example, there might be a few sheets of a smaller town on a bigger city. You can search for that in the all full text fields. That will search the other geographic location that we saw, like in Richmond. So say if we typed in Manchester, and we did a search for that. You would see that it’s here as well under Richmond, as well as its own city. So, you can see that maybe it had earlier sheets here in Richmond. If you don’t find it in the search, and you don’t find it in the search fields, and if you don’t find it in the list, then it’s likely that one was not made at that town. Unfortunately that does happen. A lot of small cities and towns just don’t have them sometimes.

Searching for counties and regions in Sanborn maps

Lisa: Well, that brings up another question. Are these always sorted by town or city? Or might we even see a county or even some other kind of regional area described in a map?

Julie: That’s a great question. You do sometimes see counties, I can think of an example off the top my head if you go to California, for example. If you scroll down to Los Angeles, you’re going to see that you have the city of Los Angeles, but then you also have Los Angeles County. That’s going to cover some of the county areas that are outside of the city itself. Typically they’re covering things like factories or industrial areas, or things of that nature, but you never quite know.

Another example would be in New Jersey. If you go to New Jersey, and scroll down to New Jersey coast which includes several different seaside towns. This would be an example of when you might want to do the full text search if you didn’t find it in the list. For example, New Jersey Coast includes Longbranch, and Monmouth Beach, etc. All of these volumes are kind of scattered down the coast.

I like to say that, for every rule for Sanborn maps, there’s an exception. It would be worth perusing that list just to see what other gems are out there are maybe very close by areas that would be worth taking a look at, even if we do find our cities listed or in a search.

The Sanborn Fire Insurance Map Index

Lisa: I can imagine there was a lot of effort that went into the indexing part of this collection,  just getting all these cities and counties and everything listed. Was that work that the Library of Congress had to do? Or was that given to you by the company who now owns the copyright on Sanborn? And does it include anything besides a geographic place such as for example, any map with a saloon or any map with a particular feature?

Julie: That would be pretty amazing! Unfortunately, no, we don’t have anything that would list every saloon ever found, though, if somebody wanted to do that project, we’d be happy to take that.

This list was created by the Library of Congress in 1981, and we’ve added to it as we gained new material. The library is always looking for Sanborn maps that we don’t have in our collection. And when we find them, we do try and acquire them and then add them to our index. So, this particular list was created by staff at the library in 1981.

Lisa: What made me think of that question was I know that the David Rumsey collection out at Stanford is now working with and experimenting with a special type of OCR to pull that kind of text off maps. It’s amazing to see what technology might be able to do for us in the future.

Sanborn Map GIS Project

Julie: It is amazing what technology could do. And you’re right, there is a great project going on right now called machine reading maps that is experimenting with pulling the text out of the Sanborn maps to then create new products out of that.

We also have a new GIS project. GIS is geographic, geographic information systems. It’s basically putting information on a map so that you can see it and comprehend it at a glance.

One of the problems that we were having with our Sanborn maps, especially for our very large cities, like New York, LA, Chicago, is that there are so many volumes covering that city, and people would want to know where their exact address was. Well, there are, let’s say, seven or eight volumes of New York City. Which volume includes that address, right? So, we’ve created what we’re calling the Sanborn Atlas Volume Finder. You can find the link on our resource guide page. Click the link and you will see a map of the country. It’s going to pinpoint our current volume blinders.

We are hopefully going to be making more as we go. But basically, the first map is an index of what we have. Tight now we just have Los Angeles, Chicago and Detroit. We’re working on getting Washington DC and New York City out.

But say, for example, you’re interested in a map of Detroit, or an address in Detroit. If you click on Detroit on the pink pin, you can then click on the Sanborn volume finder. That’s going to take you to the Detroit map. It’s going to show you exactly what areas are covered in Detroit. It’s going to show you the extent of the Sanborn maps for the different years that it was mapped in Detroit.

If you look on the left side of the screen you’ll see the legend. This is a range of years for each set of maps that was created. You might see 1884 to 1896 and then 1897 to 1899. You can click the years on and off.  So, if you just wanted to know the earliest maps of Detroit, you can see where it was mapped. And you can enter your address in the upper right corner of the screen. That’s going to pinpoint for you the address. Then when you click on it, it’ll tell you the volume where you’ll find the map, and a link that’ll take you to the digital images. So you don’t have to guess which volume your address is in anymore. It will tell you whether the digital images are available, or if the map is not available online, you can contact us to learn more about it.

Lisa: What an amazing tool. It’s exciting to think that will continue to expand particularly for these really big cities where like you said it, it’s like a needle in a haystack with the addresses.

Julie: Yes, there are a lot of volumes for some of these cities. It can be really difficult without expert knowledge how to find your address. We feel like this is really going to help researchers in diving deeper into the Sanborn maps and really finding what they’re looking for.

Accessing Offline Sanborn Fire Insurance Maps

Lisa: You mentioned that sometimes you’re going to see that it is not available online. That might be a copyright issue or something else. Explain to us a little bit about what our options are for getting access to a map that might only be available in person the Library of Congress. How might we go about the in person visit, or making a request online to get a copy?

Julie: It’s the geography and map division policy that we will not scan or send items that are possibly under copyright protection. In the case of the Sanborn maps, if they were renewed or after 1964 then they are copyrighted, so we can’t send those electronically to you. You can make an in person visit to the Library of Congress reading room. We’re open Monday to Friday 8:30 to 5:00, and we will pull out anything you want to see.

Another option is that these volumes have all been scanned in black and white by ProQuest, a subscription database. Those are all scanned in black and white. A lot of universities and public libraries subscribe to the ProQuest database. Go to your public library and ask if they subscribe to the ProQuest database. If they do, you can see them there, and you can download them. However, those are black and white, so that’s a little bit not as helpful sometimes if you’re looking for building construction, and things like that.

There is also on our research guide page, under Internet Resources a link called the Union List of Sanborn Maps. This is a list compiled by the University of California at Berkeley of other institutions that have Sanborn maps other than the Library of Congress. So if, for example, you are in California, and you can’t make it to the library, you can see if other institutions also have those physical copies that you could go to that institution to see.

Lisa: I’m familiar with ProQuest. Do you happen to know, is there one place where you can look up and see which libraries subscribed to ProQuest? Or is that just too much to ask?

Julie: I think you would have to do that individually by library. I’ve never seen a master list. But I find that librarians are usually very helpful people. So, if you called your local library or university library, I’m sure librarians there could tell you help you track it down.

The Growth of the Sanborn Map Collection

Lisa: So it this indeed a growing database? And do you continue to get both stuff that can go online as well as maps that will just be available in person?

Julie: We are always looking for maps that we don’t have here in our collection. Usually, most of those are going to be more recent, like 1950s, 1960s and 1970s maps. The library gained most of our early collection from copyright deposit. It used to be that you had to send in a physical copy of something for to get it copyrighted and that’s how our collection was built. We are still always looking for new updated ones that we don’t have. It is a growing collection. I wouldn’t say that we’re receiving them every day or anything. But when we do find them, and we do like to acquire them.

Final Thoughts on Sanborn Maps

Lisa: Wonderful. Well, before I let you go, you are the guru when it comes to the Sanborn Fire Insurance Maps over at the Library of Congress. Anything else that we should really know about, or look for as we’re working with these Sanborn maps?

Julie: That’s a good question. First, I want to say that we always welcome questions to our division. On the left of the research guide, or on our main library of congress homepage, there’s a link that says Ask a Librarian, and you’re welcome to send us any questions that you have, that we haven’t answered on our research guide, or that you’re confused about. We’re always happy to answer questions.

The Sanborn maps are a fantastic resource for doing genealogy, for finding out more about the town you lived in, and the buildings that were there, and the types of buildings. A lot of the buildings will say what was in them, for example, a candy shop or a hat shop or whatnot. So, they’re a great resource to just find out more about the town. There’s always more to learn about them. I’m still learning about things that I didn’t know about Sanborn maps, years later.

Lisa: Julie, thank you so much for coming and sharing this terrific collection, and giving us such a unique view of the places where our ancestors may have lived. I’m sure you’ll be getting many inquiries through Ask the Librarian.

Julie: Yeah, dive in, reach out. We’re here to help.

Lisa: thank you so much for joining us here today.

Julie: My pleasure. Thank you.

Citing Sanborn Maps

Julie: The Library simply requests an attribution to the Library and the Geography and Map Division when publishing material from its collections, the format of the citation is up to you.

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How to Find Old Rural Addresses on a Map

Have you ever found an address for an ancestor but been disappointed that it is just a Route number and a town name? Have you wondered if it is possible to figure out where they actually lived? The good news is, it is! I’m going to show you how to take a rural “route” address from the early 20th century and find it on an old census enumeration district map. 

find old rural addresses on a map

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In a recent video I showed you how to find 1950 Census Enumeration District (ED) maps. These are super helpful and also free. In that video we used the address of an ancestor that we found by hunting through old letters and documents. But for many Americans in the early 20th century that address may have just been a route number and town.

That was the case for my viewer Lisa. She emailed me after she watched the video. She writes, “How can you find the E.D. number when you only have a Route number? My relatives lived in rural Arkansas.”

This is totally doable! Follow allow these steps of this case study and they will help you find the E.D. number and census enumeration district maps, and zero in on the location.

“Route 2” & Rural Delivery

A carrier route is basically the territory one letter carrier can cover on a daily basis. So, there could be a Route 1 or a Route 2 in thousands of places around the country. It just happens that your ancestor was on, say, Route 2 in a particular township area. Although it doesn’t tell us which house, it does dramatically narrow down the place because a daily route was the same and may not have been that large. Once we find that area we can then use other sources to help us try to get even more specific.

If you’re interested in some interesting history on early rural delivery routes read Riding a Rural Free Delivery Route, 1903.

Here’s a handy PDF download from the post office: Post Office: First Rural Routes by State.

Step 1: Gather the Details

The first thing we need to do is gather some details. We need:

  • The ancestors’ names
  • The Route number address which includes the town
  • The county – which is something we can easily find online with a quick search
  • The year – in this case the address she has is from 1950.

 So, here’s what Lisa sent me about her ancestors, the Blazers:

Names: Joseph Madison Blazer and Minnie Blazer
Route number: Route 2
Address: Frazier Pike
County: Pulaski

Joe and Minnie Blazer c1950

Joe and Minnie Blazer c1950 (Image courtesy of Lisa Egner.)

Step 2: Find the Family in the Census

Now we need to find the family in the census record closest to the date of the known address.

Since the 1950 census hasn’t been released yet because I’m recording this in Jan. of 2022, we can’t yet pull up their record. So, we’ll need to turn to the 1940 census. There’s a good chance that the family was in the same location since folks didn’t typically move around quite as much or as far as we do these days.

The 1940 census is available for free at many of the larger genealogy websites like FamilySearch and Ancestry.

Here’s the Blazer family in the 1940 census, and Lisa confirmed that she believes this is the same place.

census record

On the census record we are looking for three very important things:

  • the township (Badgett Township)
  • the ED number (60-2B)
  • and any address written along the left margin. If you don’t see anything, check the pages before and after that page. (Frazier Pike)

Step 3: Search for the Township

Once you have the location or township, search for them in an online map. I prefer to use Google Earth, but I often also use Google Maps. It doesn’t hurt to check both.

In this case we have two locations to look for: Badgett Township and Frazier Pike. We’ll start with the actual address which was Frazier Pike, Arkansas. Google Earth tell us that it’s a road just southeast of Little Rock, AR. When you click the pin it also tells you the current zip code for the Frazier Pike area, so we’ll make note of that. I’m like to create a project folder (Blazer Address) in my Places panel and then save the location pin in it. I will add additional items to the folder as I find them.

finding zip code in google earth

Click the pin to see the zip code.

Next, I’ll search for the other location found in the 1940 census, Badgett Township. It doesn’t appear in either Google Earth or Google Maps. That’s probably because it’s been renamed or incorporated. Googling may be able to help so I googled: badgett township arkansas history.

This led me to a website that provided several helpful clues. It says that Badgett is “historical”, meaning that it’s the old name of the town which has since changed. It also provides us with the latitude and longitude of Badgett which we can use in Google Earth to confirm it’s location.

Get a map website

Result: Latitude and Longitude from Get a Map 

Go back to Google Earth and enter the coordinates (34°42’10” N  92°12’0″ W) in the search box and press ENTER on your keyboard. 

google earth

The locations are very close.

And indeed, it’s very close to Frazier Pike.  (image above)

I also like to look at the image results when googling. The website results are organized by the most relevant images. When I ran a search on Badgett, AR, and click Images on the results page, I see that the first one showed a map showing Frazier Pike. So, they are nearly one and the same.

Another search result was the Home Town Locator website. It says “the Township of Badgett (historical) is a cultural feature (civil) in Pulaski County. The primary coordinates for Township of Badgett (historical) places it within the AR 72206 ZIP Code delivery area.” This confirms that it is historical, the coordinates pin the same place on the map, and the current zip code is the same.

I also ran a Google search for Route 2 Frazier Pike AR. The first result was College Station, AR mentioned in Wikipedia.

A quick Find on the page search (Alt + F) for Route 2 jumps me to a nice bit of history.

In the section discussing schoolhouses we get a description of the route: “…located in the main red-dirt road called Route 2 in Pulaski County. Route 2 is now known as Frazier Pike.”

Step 4: Find the ED Map for the Closest Census

Next, we turn our attention to the enumeration district or ED number we found on the 1940 census. As you’ll recall, 1940 is the closest available census record to the date of the address, and we found Lisa’s ancestors in that record in Badgett, AR which we now know is the Frazier Pike area in Pulaski county. On that record it says: Badgett Township. ED 60-2B.

 We could google for the year of the census and the words enumeration district map. However, there’s a great free tool for finding them over at Steve Morse’s One-Step Tools website at stevemorse.org.

In the menu under U.S. Census select the Unified 1880-1950 Census ED Finder, select the year at the top of the page. In this case we will select 1940. Next, enter the state (Arkansas) and county (Pulaski). You can then select the city or town. However, in the case of rural addresses, don’t expect to find the town listed. If it offers you an “Other” option you can try and type the name of the town (Badgett) in the field provided. Don’t bother entering the route number (Route 2) because that’s not a street address, it’s a postal delivery address.

We could also run this same search on the 1950 census. Chances are you will see more ED numbers listed because the population was growing. Since an enumeration district had to be the size that one enumerator could cover in about a two week timeframe, they were often redivided as they decades went by.

Since we know from the 1940 census that township was in existence, we should receive a list of ED numbers as a result. In this case we got three: 60-2A, 60-2B. and 60-3.

steve morse census unified

Click the corresponding ED number.

Click the linked ED number that matches the one you found in the census record. In this case, the 1940 census record told us that the Blazer family was in ED 60-2B, so we click that link.

The next page lists each ED. Click the View link for the ED.

census ED numbers

Click the View link.

The View link will take you to the exact page for that ED in the ED Descriptions from the National Archives T1224 microfilm from Record Group 29. This description helps even further define the area.

1940 census description

1940 Census ED Description

60-2 A and B says, “Badgett Township – That part north of section line beginning at the southwest corner of section 19, Township 1 North, Range 11 and extending due east to township line. Show separately College Station (unincorporated.)”

This is perfect because its’ giving us the township, range and section! We can use this information to plot it in Google Earth.

How to plot a land description in Google Earth with Earthpoint:

  1. Go to earthpoint.us
  2. Under USA Utilities click Search by Description
  3. Enter the state, principal meridian (in this case there’s only one choice here thankfully), township, range and section numbers from the census description.
  4. Click the Fly to on Google Earth button.
  5. This may open automatically in Google Earth or you may be prompted to save the file to your computer. Do that and then click it to open. It is a KMZ file so it will automatically open in Google Earth.

And here are the results! The location is mapped out for you.

land description plotted

Census description mapped in Google Earth.

Notice I still have my placemark pins for the approximate location of Frazier Pike, and the center of Badgett Twp which we got using the latitude and longitude coordinates. Section 19 is outlined in purple, and the township is outlined in orange.

Since Frazier Pike is a road, turn on Roads in the Layers panel.  Now we can see that Frazier Pike is running north and south and our pin is right on top of it.

Now we can use the census description to further zero in on the area. “Badgett Township – That part north of section line beginning at the southwest corner of section 19 Township 1 North, Range 11 and extending due east to township line. Show separately College Station (unincorporated.)”

Mark that in Google Earth using the Path tool.  Click the Path button in the toolbar at the top oof Google Earth. Click on the southwest corner of section 19 (outlined in purple) and then go east and click the township line (in orange.) Give your path a title and click OK.

google earth path tool

Click the Path button in the tool bar.

Next in the census description, on the same line as “B” it says “Show separately College Station (unincorporated.)” We can find College Park by searching for College Station, AR in the Google Earth search box.

Next, we want to follow Frazier Pike going north until we are above the section line that started in the southwest corner of Section 19. Use the Path tool again to mark it on the map.

rural route address mapped

Use the path tool to draw lines in Google Earth.

Get the Enumeration District Map

Now it’s time to head back to Steve Morse’s website and get the ED map for 1940. On the page you started your search, click the See ED Maps for… button.

one step tool ed maps

Click the See ED Maps button.

On the next page select the state, county and city again and click the Get ED Map Images button.

get ed maps at steve morse

Click the Get ED Map Images button.

This will take you to a list of all of the available maps. The first link will take you to the National Archives webpage where you can look through all the maps for the area you selected. You could also look through all the individual maps by clicking each of the links listed under “Direct links to jpegs on NARA server”. However, I don’t recommend that will take longer because they are extremely large image files. It’s easier to quickly look through them on the NARA website.

get census maps at steve morse

Click the Link to NARA viewer.

Click the link to the NARA viewer and look for the township name in the map thumbnail images. In this case I’m looking for Badgett. You can do this quickly by clicking each image and then drag the larger map in the viewer around with your mouse. I found Badgett Township in the second map.

Census ED maps at NARA

Map images at NARA.

Download the full-sized map by selecting the thumbnail image and then clicking the download button (down arrow.) The full resolution map will load in your web browser. Right-click on it and Save Image As to save it to your computer.

how to download census ED map

Right-click on the map to save it to your computer.

It can help to create a map overlay in Google Earth using this map. (Learn how to do this in the newest edition of my book The Genealogist’s Google Toolbox.) I cropped the image to just include Badgett Twp.

In fact, you can overlay both the 1940 and 1950 ED maps. Click to select a map in the Places panel and then you can use the transparency slide to fade it to reveal changes.

opacity slider google earth

Select the map and use the opacity slider in Google Earth.

Step 5: Follow the Census

The census can provide even more clues about where in an enumeration district an address was located. Using the census record and the census description of the enumeration district, it can help to highlight the area of the map. In this case, ED 60-2 is “that part north of section line” which I marked with a red path line. The Blazers address was Frazier Pike (which I marked with a green line), so this eliminated the northern area and the Fourche Dam Pike road.  To make sure that I could eliminate that area, I verified in the 1940 census that Fourche Dam Pike was enumerated separately by running a keyword search of the Pulaski County census records at Ancestry. And yes, indeed folks living along Fourche Dam Pike were enumerated separately and the road was written along the margin just as Frazier Pike was. This gives me a lot of confidence that I’m identifying the right area.

highlight the rural route address on a map

The route highlighted on the census ED map.

As you can see, there are little black squares and other markings on the map. To find out what each of those means we can turn back to the National Archives and download the page from this map collection that includes the map key.

The black squares are “Farm Units”. A farm unit square is not one family , it is the entire farm, including the owner and other families who may live and work on the farm. We also see businesses, churches, the town hall, school houses and more. We may not be able to find the exact home, but it’s possible to get very close. To do that, we need to head back to the census records themselves.

On Ancestry.com , the Blazers appear on Image 27. The filmstrip makes it easy to quickly scan through the images and browse them.

In this case, there are about 33 images or pages in ED 60-2B. The enumerator would start at one end of Frazier Pike and then make her way to the other. The enumerator wrote “College Station Pike” on pages 1 and 2. That isn’t a road today, and I couldn’t find any references to with a quick search. However, all of the other pages say, “Frazier Pike”. My guess would be that the census taker started on the west side – the hub of College Pike – and made her way east. Census enumerators visited homes and farms in a logical path, although they may have criss-crossed back and forth across the road. They listed the order in which they visited on the census form itself. In cities we might also see house numbers listed, but that’s not the case in a rural area. However, you may see pencil dots with visitation numbers written on the ED map. They were instructed to do this in rural areas in the census enumerator instructions in 1940. Unfortunately, the person enumerating 60-2B did not.

We could also look at the types of businesses and buildings shown on the map, and then look through the census records at occupations. We see a “factory/industrial” building to the east so we would look for people working in that environment in the census and see where they are living. We see a denser population in College Station along with a schoolhouse and two churches, so it would be worth looking through the census pages to see where the school teacher and pastors are listed. Folks may not have lived on the premises, but it would make sense they lived near their work.

Wedding photo Joseph Madison Blazer Minnie Mae Peterscolor

Wedding photo Joseph Madison Blazer Minnie Mae Peters (courtesy of Lisa Egner)

And finally, we want to look for renters and owners. If a family rented, a capital “R” was entered on the census. Those who owned their property were listed with a capital “O”. Since the black squares are “Farm Units” we wouldn’t expect to see a square on the map for every house. If our hypothesis is that the enumerator started on the west side, we could count the number of owned dwellings listed in the census until we get to the family living in question. Then we would count them on the map, going east. Again, it’s not exact, but it’s a whole lot more than what we knew about the address Route 2 Frazier Pike when we started!

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