July 28, 2017

New AncestryDNA Common Matches Tool: Love It!

A new tool at Ancestry DNA is blowing my genealogy mysteries wide open!

AncestryDNA common matches tool

I have been up since 5:30 with plenty of goals and ambitions for today. But I got distracted. Distracted by a new tool at AncestryDNA that is blowing my genealogy mysteries wide open.

The new tool AncestryDNA Common Matches tool is hiding between the “Pedigrees and Surnames” filter and the “Map and Locations” filter on your matches’ main match page. The Common Matches tool pulls out the shared 4th cousin or higher matches between two people.

Let’s take a look at how this might work for you.

2015 8 ICWDeniseLet’s say you have a second cousin, Denise, that you have already identified in the Ancestry database and you know your common ancestral couple is Joseph and Louise Mitchell.  You want to gather others who share DNA with both you and Denise. Those individuals then have a high likelihood of being related to Joseph and Louise in some way.

So we click on the “Shared Matches” button on Denise’s page and find that Mike, Spencer, and Wendy all have DNA in common with you and Denise.  After reviewing pedigree charts, you are able to determine that Mike is related through Louise’s sister and Wendy is related through Joseph’s brother.  Note that Wendy’s actual relationship to you is not 4th cousin, as it is shown, but she is actually your 3rd cousin once removed. Remember that the relationship given is not always the exact relationship of two people who have been tested.

2015 8 ICWSpencerBut what about Spencer? Spencer, unfortunately has not yet linked his family tree to his Ancestry account or answered any of your queries about his family tree. I am sure he has just been busy. Or he doesn’t know his family tree. Or his computer was captured by aliens or smashed by his two-year-old grandson just as he was about to click “send” and reveal how the two of you were connected. Whatever the case may be, up until this point you haven’t heard a peep from Spencer and therefore had absolutely no way to figure out how Spencer was related to you.

But now you know that he is somehow associated with the Joseph and Louise Mitchell family because he came up as In Common With (ICW) you and Denise.

We can take this one step further and ask Ancestry to show us who has DNA ICW you and Spencer.  You can see here that while Mike still remains, Wendy has dropped off the list.  Now there are two possible explanations for this: The first is that Spencer is related through Louise’s parents, John and Sarah, and that is why he is not sharing DNA with Wendy.

The other, less likely, possibility is that Spencer is related through Joseph’s parents Louis and Mary, but doesn’t share enough DNA with Wendy to be detected on this test.

While this information is helpful, it still hasn’t completely solved the case. The first thing you should do with your new-found knowledge is start sending more pointed questions to your matches. Here is an example message you might send to Spencer:

“Dear Spencer,

I was just playing around with the new AncestryDNA Common Matches tool and I see that you are related to a few of my other matches that connect through Joseph and Louise Mitchell.  Louise’s parents, John and Sarah Marsh, were both born in Mississippi in the 1840’s and Joseph’s parents Joseph and Mary Mitchell, were born in Tennessee in 1856 and 1863 respectively.

Do any of these names or places sound familiar to you?

I am looking forward to working with you on this connection.

Your DNA Cousin, Diahan”

Assuming this garners a response, you can then work together to find your connection. If his budget is not allowing for a new computer at this time and you never hear from Spencer, the key to figuring out how he is related to you may be in the new match, Beth, who is ICW you and Spencer. If you can figure out how Beth is related to you, you will know Spencer is related in a similar way.

AncestryDNA and FamilyTreeDNA quick guide setIf you’ve decided you would like to get in the DNA game, start with Ancestry DNA: Genetic Testing – DNA Test, and then head over to AncestryDNA and start growing your genetic family tree!

For a little more guidance, I suggest you purchase my laminated quick guides, “Understanding AncestryDNA and “Understanding Family Tree DNA.” These are also available as a part of a complete bundle of DNA guides specifically designed to help you navigate your results at the leading genetic genealogy testing companies. Click here to see all our DNA quick guides. 

 

About Diahan Southard

Diahan Southard is Your DNA Guide here at Genealogy Gems! She has worked with the Sorenson Molecular Genealogy Foundation, and has been in the genetic genealogy industry since it has been an industry. She holds a degree in Microbiology and her creative side helps her break the science up into delicious bite-sized pieces for you. She's the author of our DNA guides Getting Started: Genetics for Genealogists, and Y Chromosome DNA for Genealogists (click STORE in the menu above)