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My Finnish DNA Results

Last week I wrote about discovering a close Finnish relative found via a DNA match on FamilyTreeDNA. My new third cousin and I have corresponded this week and plan a phone call soon.

This connection will help me fill in my American family tree with descendants of our common Mattila family. But what else can this DNA match do?

I realized this week that it can help me categorize all my other, more distant, Finnish DNA matches. Many of the Finns have taken DNA tests, and I have lots of matches with Finnish surnames.

FamilyTreeDNA allows me to sort my matches relative to a known match. I can select my new, close match and then run a report listing all the other matches I have in common with the selected match. Then I can run another report of matches not in common with the selected match.

This technique will yield two results. Because my new cousin is a Mattila descendant, the first list will give me the DNA matches belonging to my great-grandfather Alexander Mattila’s family. The second list will show the matches for my great-grandmother Ada Alina Lampinen’s family.

This will save me a ton of work in analyzing my FamilyTreeDNA results. With the lists at my fingertips, I will know at a glance the family line for each Finnish match.

It took me awhile to realize I could do this even though the technique is so obvious. Most of my prior work with DNA has been on my dad’s side of the family. The process does not work so easily there because he has so many double cousins. Most of his DNA matches are related to him in two ways.

With these Finns I have a different story. When I decide to contact any of these matches, already I will know the surnames we have in common. No need to spend time trying to find how we are connected.

My biggest problem will be deciding who to contact first. I have at least 30 predicted 2nd-4th Finnish cousins who have taken DNA tests. When I submitted my DNA sample, I never anticipated finding so many of my mom’s relatives in Finland.

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