DNA Matches: What You Can Do with All Your Genetic 4th Cousins

(Update 2020) When genealogists take an ancestry DNA test, they are looking for more than just their ethnicity results. They are also very interested in receiving information on other people who have tested who closely genetically match them. They want to know who the closest matches are, and if those matches have family tree information that they can share. 

However, with all the people testing these days, (some being genealogists and some not) the volume of matches can become overwhelming very quickly. 

Are you one of those people who have way too many genetic “4th cousins or closer” among your DNA matches? Have you ever wondered “What do I do with all these matches?!” If so, keep reading. We’re going to explore some of your options, and most importantly, how to determine how genetically close your cousins really are. 

what to do with your 4th cousins DNA genetic genealogy

Doing the DNA Math on Your Cousins

Math can provide us with a degree of certainty in genetic genealogy. Each of us has two biological parents. We have four biological grandparents, and eight great-grandparents.
too many 4th cousins DNA matches

However, the farther back we go the less we can rely on math.

For example, on paper you should have sixty-four 3rd great grandparents. However, many of us find that the same person occupies more than one slot on our pedigree chart. While this significantly decreases the workload for traditional genealogy, it adversely impacts your genetic genealogy. Especially when it comes to that long long list of 4th cousins you have in your match list at any of the three major DNA testing companies.

Depending on how intermarried your lines are, you may be seeing individuals on your match list that genetically look like your fourth cousins, but they are genealogically your sixth cousins – EIGHT TIMES!  So how can you tell the difference?

There are two parts to that answer: one you can control, and the other you can’t.

Distinguishing DNA Matches with Genetic Tools

While your fourth cousins and your eight-time-sixth cousins may look similar genetically, there are often small clues in the genetics that can help you tell the difference. This distinction can sometimes be detected by a testing company who, through research and validation, has been able to fine-tune their algorithms to detect these subtle differences.

DNA cousins

Your Genetic 4th Cousins

You can participate in this double checking process by using some of the genetic tools that are available to you at Family Tree DNA, or at Gedmatch.com. But since you may not be an aspiring geneticist, let’s focus on the genealogical work you can do to determine if a match is truly a fourth cousin.

Use Google Earth to Plot Your DNA Matches

A fourth cousin designation just means that you and your match are separated by between six and twelve degrees (people). So that might be five back on your chart to your common ancestor, and five down to your match, which would make you true fourth cousins. It could also be some other permutation of that.

For our example, let’s assume true fourth cousins. That means that the two of you share one of thirty-two 3rd great grandparents (16 couples). In order to find out which set, you have two genealogical identifiers: surname and location.

Therefore, the first thing you should do is make a list of the surnames and locations of those thirty-two 3X great grandparents.

Now, most of us do not know all 16 of those couples, so you are going to have some holes. Feel free to fill in those holes with surnames on subsequent generations that will carry through to this fifth generation.

A great tool to plot your own list of ancestors geographically is the free downloadable Google Earth software

Check to see if you have the latest version of Google Earth downloaded to your desktop or laptop computer. On your desktop, look for a grey and white globe. If you see a blue and white globe, you have the older original free version of Google Earth. However, a few years ago, Google made their Google Earth Pro version free to everyone, and it is now the standard. 

If you do have Google Earth Pro (the grey globe software) then you’re ready to go.

Google Earth on your computer desktop


The grey Google Earth globe on the desktop.

If you don’t have it, then you will need to download it. 

How to Download the Free Google Earth Software:

  1. Go to http://www.google.com/earth/download/gep/agree.html
  2. Click the blue download button
  3. Read the Terms and Conditions
  4. If you agree to them, click the Agree and Download button
  5. Follow the installation guide
  6. When complete click Run Google Earth

Now that you have Google Earth, you can begin by creating a folder in the Places panel in Google Earth devoted to your 16 couples. Here’s how:

1. In the Places panel, right-click on MyPlaces and select Add > Folder:

how to create a folder in Google Earth Layers panel for DNA

Right-click on MyPlaces > Add > Folder

2. Name the folder and then click OK:

Creating a folder in Google Earth

Creating a folder in Google Earth

3. Now you will see your new DNA folder for your 16 couples in the Places panel. If you don’t see it, look toward the bottom of the list. You can move the folder to any location within the list by dragging and dropping it. 

Create a folder in Google Earth for DNA 32 couples

Create a folder in Google Earth for DNA 16 couples

Once you have your DNA folder created fro your 16 couples, you can then easily plot your surnames and locations. 

How to Plot Your Surnames and Locations in Google Earth:

1. Click your new DNA folder to select it. This will ensure that the placemark you are about to create will be stored in that folder. 

2. In the search box (upper left corner of the Google Earth software) type in the first location and click Search. Google Earth will fly to that location on the map.

Type the locaton in the Search box and click Search.

Type the locaton in the Search box and click Search.

3. In the toolbar along the top of the screen, click the placemark button to place a pushpin in that location:

Click the Placemark button in the Google Earth toolbar

Click the Placemark button in the Google Earth toolbar.

4. In the Placemark dialogue box, enter a title for hte pushpin placemark. Click the OK button to close the box and set your placemark.

5. Repeat the process for all the locations. 

Then evaluate the fifth generation of your fourth cousin matches for genealogical information that lines up with any of the items on your list.

You can also plot the surnames and locations of your matches in Google Earth. This is where Google Earth really comes in handy. The free software makes it very easy to see when your ancestral home may be bordering the locations of your matches. Those with whom you find a similarity become your best matches, and your best chance of determining your connection. Those without an obvious connection cycle to the bottom of your pile for a genetic evaluation. You can perform these same kinds of searches for your second and third cousins as well.

As you begin to become more familiar with the fifth generations of your matches, you may also start to see patterns of surnames or locations emerge among your matches. These then become the surnames and locations that might be able to fill the missing spaces in your pedigree chart.

More Genetic Genealogy and Google Earth Gems

If you are new to using Google Earth, I have several suggested resources for you by Lisa Louise Cooke:

Premium podcast 131

Learn more in Premium episode 131.

Here’s a video of the authors discussing three common DNA misconceptions:

 

 

Authors: Diahan Southard and Lisa Louise Cooke

Google for Genealogy: Google Keyword Search Tips

These Google keyword search tips can help you harness the incredible power of Google to search for your ancestors across trillions of webpages!

The Genealogist's Google Toolbox Third edition Lisa Louise Cooke

Click here to get my book on using Google

Do you use Google for genealogy? This free, powerful web browser will scan over 30 trillion webpages for information we request: our ancestors’ names, messages from those with common ancestors, or pictures and stories relating to our relatives’ lives.

However, it’s all too easy to run a Google search for an ancestor’s name–and then become discouraged when we see a quarter million search results. Especially if the first few results don’t seem relevant at all! We may give up, unaware that the gem we’re after is among our results, but much further down the list.

Certain Google keyword search tips and tricks can help you get exactly the types of search results you’re after. Once you learn Google search strategies for genealogy, you’ll find yourself using the same strategies to find other things online, from recipes to how-tos to old car manuals or anything else you need!google for genealogy keyword search tips

Here’s how to get started

1. Go to the Google home page and enter a few keywords relating to a piece of information you hope to find online. Say, an ancestor’s full name and hometown such as Andrew Larsen Scranton PA. Or a type of record you need and the location (probate records Lackawanna County PA). As you see from these examples, you don’t need commas in between your words or any other punctuation, at least to begin with. After entering a few keywords, hit Enter.

2. Look at your search results. The first few may be sponsored search results, or results that appear on websites that are paying for you to see them first. These results may or may not be what you’re looking for. Scan them, but keep looking!

3. Do you see too many search results? Too few? Not quite on target? Add or subtract keywords as needed, and search again. For example, if your search for probate records Lackawanna County PA just brings up current probate records, add the word genealogy. If Andrew Larsen Scranton PA doesn’t bring up any relevant results, try omitting his first name from the search. Then results for anyone with that surname will come up.

4. Still not quite right? It may be time to start adding little codes to tell Google exactly what you want.

5 Google Search Strategies That Get Better Results

Search operators are symbols and words that instruct Google on what to do with the keywords you provide in your search query. Get ready to talk Google’s language with these 5 strategies:

1. Quotation Marks (“ ”). One of the quickest ways to improve your search results is to use quotation marks. Using quotation marks around a phrase ensures that this exact phrase appears in each and every result. For example: “U.S. Federal Census” returns websites featuring that exact phrase, and no variation. “Jehu Burkhart” returns only webpages that include the exact name Jehu Burkhart somewhere on the page. Keep in mind though that if Jehu’s name appears as Burkhart, Jehu on a web page it will not appear in your results list.

2. OR. Use this to provide for more options in Google search results. For example, we can solve the last name first, first name last problem like this: “Jehu Burkhart” OR “Burkart, Jehu”. Not be sure whether Great Grandmother Smith is buried in Manhattan or Brooklyn?  Search for cemeteries in either city: Cemeteries Manhattan OR Brooklyn.

3. Minus Sign (-). Let’s say that you are searching a Harold Carter from Springfield, Ohio and there happens to be a prominent man named Harold Carter from Springfield, Missouri who keeps popping up in your search results. Ask yourself: “what’s unique about this other person that I could eliminate from my Google search?” If the unwanted Mr. Carter was married to Mabel and owned a steel factory, you could try this approach:“Harold Carter” “Springfield” Missouri -Mabel -Steel. By using the minus sign operator you can sweep this Mr. Carter from Missouri out of the way and off your results page.

4. Numrange (00..18). The numrange command adds a range of numbers to your search parameters. To enter the command, type the beginning number, then two periods (no spaces), then the ending number. Use this feature to include the timeframe of your ancestor’s life in your online search. “Harold Carter” “Springfield” 1865..1934

Google for Genealogy Search Strategies

Google Search Example

5. Mix and Match. As you can already see in the above examples, it is perfectly acceptable to mix and match search operators. Here’s a search query that makes use of our first four strategies:  “Harold Carter” OR “Carter Harold” “Springfield” Missouri -Mabel -Steel 1865..1934 

Resources for Success

Use Google Search Operators to Define Old or Unfamiliar Words

Can Google Help Me Search Digitized Newspaper Pages?

Google for Genealogy: New Search Operators and More (podcast episode, available to Premium members)

The Genealogist’s Google Toolbox

The Genealogist's Google Toolbox Third edition Lisa Louise Cooke

Available in the Genealogy Gems Store

The Genealogist’s Google Toolbox has become the “Google bible for genealogists.” Now in its second edition, the book was fully revised and updated in 2015. A lot has changed since the first edition was published in 2011, and it’s all documented step-by-step in this new edition.

This brand new edition includes:

  • Google Search
  • Google Alerts
  • Gmail
  • Google Books
  • Google Translate
  • YouTube
  • Google Earth
  • Brand new chapters on Google Scholar and Google Patents

share notes with evernoteIt’s Nice to Share. Do you have friends who would benefit from this article on using Google for genealogy and Google keyword search tips. Please share this article with them. You will find handy sharing buttons on this page, or just copy and paste the URL for this article into a Facebook post or email. Thanks!

Tour Your Childhood Home with Google and Google Earth

Ever thought of visiting your childhood home? Here’s a story about people who are actually buying theirs back. For the rest of us, here’s how to use Google and Google Earth to revisit your childhood home and relive some memories–without spending a dime.

Tour Your Childhood Home with Google and Google Earth

Your childhood home–or perhaps another beloved family home–is your own personal address on Memory Lane. Who wouldn’t love to stroll up to its doors and recapture some memories?

The image above is of my husband’s great grandfather’s home in Winthrop, Minnesota. It’s a home that I have many photos of, have researched, and have come to feel personally connected to although I’ve never seen it in person. It’s one of many ancestral homes that I yearn to visit one day. So as you can imagine, I really enjoyed this report from The Wall Street Journal about a few lucky folks who are living the dream of not only visiting, but owning and restoring, their childhood home.

Even if you’re not interested in buying back an old family home, many of us are curious about the houses we used to love. Are those houses still there? What do they look like now? What else can we learn about them?

Let’s explore three ideas to help you stroll down memory lane. Then, I’ll share a discovery from a Genealogy Gems Premium podcast listener who recently dropped me a line.

1. Find the address for your childhood home

If you don’t recall the street address of your favorite family home, ask a relative or look it up. For U.S. addresses since 1940, you might start with the U.S. Public Records Index, searchable in part or full at Ancestry.com (volumes 1 and 2 for 1950-1993), FamilySearch.org or MyHeritage.com (click here to learn more about that database). Look also in records such as:

For U.S. addresses from 1880-1940, look to U.S. census records, which include street names and house numbers. In the example below from the 1930 census, you can see “Cedar Street” written vertically by the red arrow, and the house number written for each household entry, as shown in blue.

From the 1930 US census, Ancestry.com.

If you can’t find an address on an old record, but you think you could navigate yourself there on a map, it’s time to go to Google Earth and fly yourself there!

2. Use Google Earth to view your childhood home now

The Genealogist's Google Toolbox Second edition

Learn all these Google skills with step-by-step tutorials and video demonstrations in The Genealogist’s Google Toolbox book

Google Earth is your on-ramp to your own personal Memory Lane. Go to the site, enter an address, and watch yourself “fly” to that address. If you don’t know an exact address but you know where to look, enter a street name or even a city. Then zoom in to the neighborhood and street section of interest. Activate Street View, if it’s available. Not sure how to do that? Watch my free Google Earth for Genealogy Video Class to get started.

Once you’ve found the location, take a close look. Is the house still there? What does it look like now? How has the landscape changed? The neighborhood?

You can use Google Earth to revisit your own childhood home or another family landmark, such as an ancestor’s homestead or burial place. (Click here to read about one genealogist’s virtual trip to an ancestor’s business using Google Earth’s Street View, and click here to see how another genealogist used historical map overlays in Google Earth to identify an old home’s location.)

3. Google the address of your childhood home

Googling the address of your family home may produce unexpected and interesting results like these:

a) Sale listings. If your house has been on the market in recent years, you may be able to find a listing with great details, and even pictures of the inside today. Top Google search results from specific addresses often bring up real estate websites with varying degrees of information, such as square footage, current estimated value, year built, most recent sale date and price, and more. Weed through these entries to see whether Zillow or another similar site shows a current or past listing for sale or rent. These may contain more details and may even have interior and exterior pictures of the house as it is now.

Watch closely—Google may bring up houses nearby, not the one you’re looking for. But even a neighborhood listing for a house built on a similar floor plan may jog your memories of the home and may give you a sense of what the area is like now.

b) Historical information. A Google search result may bring up historical news coverage or obituaries from digitized newspaper websites like Newspapers.com (a subscription may be required to view these in full). Or you may find something really fascinating, like a discovery made by Genealogy Gems Premium member Heather. After listening to me talk about this subject in Premium Podcast episode 141 (click here to subscribe), Heather wrote me this email:

“I love listening to the podcasts while driving to and from work, often sharing my own thoughts with you.  This happened yesterday while listening to the latest Premium Podcast episode on family homes. I decided that I had to write and share what I managed to find! Since I have deep family roots in Connecticut back to 1650s, I managed to find a few family homes, but I started searching with the more recent generations and addresses that I knew. The two homes where my great-grandparents (Inez Hart and John Milton Burrall) and my great-grand aunts (Mary and Lucy Burrall) lived were written up in an application for the National Register of Historic Places!

The National Park Service is working on digitizing these applications. I found the application with a narrative description of the home and pictures of the interior and exterior. I have found other applications that have also included some genealogy of the family who lived in the home. Here is the website for the National Park Service and the database search page.”

Thanks for sending these in, Heather! And for sending along copies of the applications she found. The multi-page applications (more than 10 pages each!) include historical background on the buildings and former owners, as well as photos and site maps. Above is a photo–and below is an excerpt–from these applications.

When you’re ready for a full-fledged Google education, take a look at my top-selling book, The Genealogist’s Google Toolbox, and my companion video tutorial series, Google Earth for Genealogy.

how to use google earth for genealogy

Get the downloadable video series at the Genealogy Gems Store

Disclosure: This post contains affiliate links and Genealogy Gems will be compensated if you make a purchase (at no additional cost to you) after clicking on these links. Thank you for supporting Genealogy Gems!

 

 

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