1950 US Census Maps – How to Find and Use Them

In Elevenses with Lisa episode 79 Lisa Louise Cooke explains:

  • How to find 1950 US Census Enumeration District (ED) Maps
  • The purpose behind them and how to interpret the maps
  • Ways to use the maps for your genealogy

This is a follow up to episode 51 on The 1950 Census for Genealogy. In that episode I discussed the importance of finding your ancestors’ enumeration district numbers in order to be able to find them when the digitized images are released (before the index is available.) In this episode I will walk you through how to locate the enumeration district (ED) number and then find the actual 1950 US Census ED map. We’ll wrap things up with a quick update on the release of the 1950 US Federal Census. 

Episode 79 Show Notes 

 (Get your ad-free Show Notes Cheat Sheet at the bottom of this page in the Resources section.)

As I mentioned in Elevenses with Lisa episode 51 The 1950 Census for Genealogy, prior to 1880, U.S. Marshalls were the enumerators for the federal decennial census. Starting with the 1880 census enumerators were hired and they were each assigned an enumeration district, also known as an ED. These districts had to be mapped out so that the enumerators knew the area they were responsible for counting. Therefore, maps are drawn in anticipation of each census being taken, including the 1950 census.

The 1950 Census for Genealogy

Learn more by watching episode 51 on the 1950 census.

About the 1950 US Census Maps

It’s always important to understand the purpose of a record or source, and the 1950 Enumeration District maps (ED maps) are no exception. Unlike most maps where it’s all about accurately drawing up the current roads and geographical features, census ED maps are drawn up for the purpose of defining boundaries for the purpose of counting people. This means as we look at ED maps we need to keep a few things in mind.

The first thing to understand is that the 1950 ED maps were not necessarily up-to-date with the lay of the land in 1950. Not all streets, parks and features will be included. The reason for this is that the maps themselves were not created for this purpose. Existing maps were used and then enumeration district boundaries were drawn on them.

Maps came from a variety of sources including but not limited to county and City Planning Commissions, 1940 census bureau tract maps, and city engineers. In fact, from a mapping perspective the variety of maps in the collection are fascinating.

Look for the map title, description, legend and census stamps typically found in one of the corners. In this example (see image)  from Aurora, Colorado the map used was originally created by the city engineer in 1946 and was revised in 1947.

1950 census map legend

1950 census map of Aurora, Colorado (Source: National Archives)

Following the end of World War II, the United States was growing at a quick pace in 1950. This is particularly true of the newly emerging suburbs. Therefore, if your ancestors built a new home in a new development in 1949, don’t be surprised if you don’t see the street on the 1950 census ED map. However, rest assured that the maps still hold value for your family history as they provide many interesting and unique details about the area surrounding your ancestors’ homes.

Each map was stamped with a small legend where the meaning for each of the colored lines drawn could be indicated. From my random sampling of 1950 census maps across the United States it appears that the coloring coding was consistent as follows:

  • Red = Township
  • Green = Corporate Limits/Ward
  • Orange = Enumeration District

Expect to see errors, inconsistencies and omissions in the maps. The more rural the area the more likely the map was compiled from several sources by the Census Bureau cartographers. This compilation created more opportunity for errors, and often used older maps.

1950 census in rural area

Source: National Archives

The Meaning of Census Enumeration District Numbers

A census enumeration district number is made up of two numbers separated by a dash. The first number (in this example: 1) represents the county/region. The second number represents the area within the county that could be covered by an individual census enumerator within the amount of time provided for taking the census, about 2-4 weeks. The official start of the 1950 US Federal Census was April 1, 1950.

census enumeration district numbers

Census enumeration district (ED) numbers on a 1950 census map.

How to Find 1950 Census Maps

Some 8,000 census maps have been digitized and are available at the National Archives. However, the National Archives website can be challenging to navigate. I recommend using the Unified 1880-1950 Census ED Finder Tool at Steve Morse’s website. 

1. Go to https:/stevemorse.org

2. In the menu in the upper left corner hover over US Census and in the secondary menu click Unified 1880-1950 Census ED Finder

3. Select the state from the first drop-down menu.

4. Next select the county.

5. Then select the city.

6. You will then see many enumeration district links listed. In order to find the right one for your ancestor’s home, enter the house number and select the street from the next drop-down menu. Don’t worry about directional parts of the address like west or east unless they are offered in the list of street names.

7. As soon as select the street name, the list of ED numbers should be reduced. In this example we are down to three.

8. To further reduce the possible ED numbers, we can select Cross or back street on same city block. If you’re not sure what the neighboring streets are, click the see Google Map This will plot the address you entered into Google Maps where you can then find the closest cross street, and the next streets over. If the address is not precisely marked on the map, check the address that appears in the Google Maps search box.

In my case, the One-Step tool didn’t allow me to specific W. Arcade, so Google Maps just gave me the general area, and not the address. By adding the W. to the address and pressing enter on my keyboard Google Maps was able to precisely plot the location. Now we can make note of the closest cross street (ex. N. Center), the street north of the address (E. Monterey Ave.) and the street south of the address (W. Noble St.)

9. Head back to the Unified 1880-1950 Census ED Finder page and enter each nearby street (you can enter multiple.) This should reduce the ED numbers one. This is the ED that includes your ancestor’s address.

How to Find 1950 Census Maps

1. Make note of the ED number, and then go back and click the button that says See ED Maps for ____________ County. You could have clicked this button without going through the process of locating the ED number, but the ED number makes it much easier to find your ancestor’s home street on the map. This number will also assist you in being able to find your ancestors in the 1950 census before it is indexed.

2. You will now be on the Viewing 1950 Enumeration District Maps in One Step Re-enter the city from the drop-down menu.

3. Click the Get ED Map Images You will receive two links. The first link is Links to NARA viewer will take you to the page on the National Archives website which includes all of the information about the map and the record hierarchy. Source citation information can be gathered from this page.

5. Click the second link called Direct links to jpegs on NARA server. This will take you to the image by itself as hosted on the National Archives website. I find this the easiest way to save the full resolution image to my computer hard drive. On my PC I right-click on the map and select Save Image As.

This page is also important if you want to use this image in another program such as Google Earth. The URL for this page is the direct URL to the image. Notice that it ends in .jpg. This means that it is the image alone, and this link can be used to create a custom map overlay in Google Earth. You can see an example of a custom map overlay in my video Create a Family History Tour with Google Earth Pro at the 06:13 mark.

Resources

 

National Archives Thief Sentenced to 7 Years

Press Release from the National Archives:

Barry Landau Sentenced to 7 Years for Thefts From National Archives, Other Institutions

Washington, DC . . . U.S. District Judge Catherine C. Blake yesterday sentenced Barry H. Landau to seven years in prison, and three years of supervised release, for conspiracy and theft of historical documents from cultural institutions in four states, including the Franklin D. Roosevelt Presidential Library in Hyde Park, New York.

The items stolen from the Roosevelt Library, which is part of the National Archives and Records Administration, were seven “reading copies” of speeches that Roosevelt delivered. They contained his edits and handwritten additions, along with his signature. They have all been recovered.

Landau’s co-conspirator, Jason Savedoff, will be sentenced at a later date.

Archivist of the United States David S. Ferriero said he was pleased that Judge Blake “recognized the seriousness of this crime and meted out an appropriate punishment that will serve as a warning to others who may contemplate stealing our nation’s history.”

“There is a very special bond that forms between researchers and research institutions. It’s kind of like an insider’s club. We speak the same language, share the same interests, explore the same minute details of historical knowledge that will eventually fill in the fabric of our shared history as a nation,” the Archivist added.

“When a researcher turns out to be a thief and steals the documents that are the very underpinnings of our democracy, our trust and respect for the community is shaken. Barry Landau is just that thief. Dressed in the guise of a scholar, he ingratiated himself with our staff and stole priceless documents from the Franklin Roosevelt Library. In essence he robbed from all of us—our collective history. And he did far worse damage to numerous other research institutions around the country.”

The Archivist said that because of incidents such as those involving Landau, the National Archives and other research institutions around the world have become more vigilant over the last few decades. They have instituted a number of measures aimed at preventing theft, such as closed-circuit cameras, clean research room rules, exit searches, and increased staff surveillance.

“When a theft does occur, we rely on the Office of the Inspector General and the Justice Department to build a case and bring the perpetrator to justice,” he added. “I want to thank them for their hard work.”

Lynn Bassanese, Acting Director of the Roosevelt Library, recalled that when Roosevelt dedicated his library on June 30, 1941, he declared it an “act of faith” in the American people.

“Barry Landau and Jason Savedoff violated that faith by taking advantage of the trust and confidence that the Roosevelt Library’s staff has for its researchers,” she said.”With the successful return of the stolen documents, the Roosevelt Library renews its commitment to protect and preserve the records of the Roosevelt Presidency and to make them accessible to the American people for generations to come.”

According to Landau’s plea agreement, the “reading copies” of Roosevelt’s speeches were stolen when he and Savedoff visited the Roosevelt Library on December 2, 2010.

“Reading copies” are the actual copies of the speeches from which the President read. They contain edits and handwritten additions made by him and bear his signature.

Four of these “reading copies” of speeches were sold by Landau on December 20, 2010, to a collector for $35,000. Three other “reading copies” of inaugural addresses delivered by Roosevelt, valued at more than $100,000 each, were recovered from Landau’s apartment in New York City during court-authorized searches, including the water-stained reading copy of the inaugural address Roosevelt delivered in a steady rain in 1937.

Judge Blake also ordered Landau to pay restitution totaling $46,525 to three dealers who purchased the stolen documents from Landau, not knowing they were stolen. She also ordered Landau to forfeit all the documents recovered during searches of his New York apartment.

The National Archives and Records Administration is an independent Federal agency that preserves and shares with the public records that trace the story of our nation, government, and the American people.

Register for Genealogy Roots in Sandy, Utah

Genealogy RootsJanuary 14 & 15, 2020 – St. George, Utah Genealogy expert Lisa Louise Cooke, (Genealogy Gems Podcast) and her special guest speaker Geoff Rasmussen (Legacy Family Tree Webinars) will share a stage on January 14 & 15, 2020 at the Senior...

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