How Far Back

[blejerh]

My son and his father's 4th cousin tested and they have a distance of 4. Two of the markers they differ on are known to be fast mutating and one of the markers of the four is part of a pair. Their shared male ancestor was born in the late 1700s. Ashkenazi Jewish from Courland (Latvia) relocated to...

[blejerh]

My mother has a shared segment of 37.4 cM on Chr. 10 with a stranger. I assumed that he would be 5th to 7th cousin or closer since I have a sixth cousin who has a 31 cM overlap with me and that's from a small village with a lot of intermarriage.

When we compared trees I found that my...

[blejerh]

Thank you for the very helpful answer and examples. I intend to get my brother-in-law tested if he'll agree and I know that one of the male cousins in Israel is planning to test as well. Luckily for us, there are a lot of male descendants. Four brothers emigrated from Latvia to Southern Ukraine but...

[blejerh]

We have now had two males of our family tested - my son and his father's 4th cousin. My son was tested for 67 markers and his cousin for 37. I have ordered upgrades for both. On 37 markers there are 4 differences between my son and his cousin, both with paper trails of male line ancestry going back...

[blejerh]

My third cousin and his daughter share a longest segment of 48.38 cM with me. Our family lived in a small village (700 Jews) where at the time when the village was largest, people with our surname alone were about a 1/8 of the population (80 people) and we lived there 100 - 150 years and likely had...

[blejerh]

This is a much needed reminder, thank you. My sister's results came back recently and they were compelling proof of recombination.

I share 31 cM with a 6th cousin. My 3rd cousin and his daughter also have longish overlapping segments shared with that individual in the same place....

[blejerh]

We just had one of those wonderful, unusual matches. My mother has mostly Mayflower and Great Migration ancestors but her great great grandparents on her mother's side were (1) Scotch Irish from PA and VA and (2) early settlers of Cumberland County, southern New Jersey. The surnames of the latter...

[blejerh]

We have two cousins with a paper trail of being 6th cousins who differ by 1 or 2 numbers on the Y-DNA. It's at least 1 and maybe 2. The Family Finder test confirms the close cousinhood by the way, all us cousins share a large segment on one chromosome.

[blejerh]

When Gedmatch accepts uploads again (August hopefully), you can upload your and your daughter's results and run the tool to get phased results that attempt to produce separate results for her mother's and father's side. I've done that for my results and my son's results. Then I compare his paternal...

[blejerh]

That 3rd once removed cousin is MY side and with a great paper trail but matches my son and not me on FTDNA. I can nearly bet good money that he will match me too on Gedmatch.

[blejerh]

I got my 5th cousin back and my son got my 3rd once removed cousin back.

So far the only oddities are that my son has two non-AJ Southern matches that showed up 4/2/2013. They are anomalies because they would have to be on MY side, through my non-Jewish mother who had Scotch-Irish close...

[blejerh]

I am also 1/2 AJ and my son is 3/4 AJ. I have whined on this forum before about how FTDNA's algorithm, which is biased towards total shared DNA, results in bizarre results for our family's matches.

My son has a larger total shared DNA with his AJ matches and often due to the algorithm...

[blejerh]

My 5th cousin disappeared with 37 and he's back as of today.

[blejerh]

Sorry, should have said "shares ancestry with my husband"...

[blejerh]

Among the matches lost were my 3rd1R cousin and my 5th1R cousin. The 3rd cousin matched my son but not me. The 5th1R cousin matched both of us.

As I have mentioned before, I have a lot of DNA matches that I share with my son which show up on Gedmatch but not on FTDNA, due to the threshhold...