Archive | 2023

How Related Are Ashkenazim?

Eight of the ten fully Jewish kits I have access to showed related parents in the “Are Your Parents Related”  (AYPR) tool on GEDmatch. I am wondering if this level of relatedness (about a 4th cousin) is generally true among Ashkenazim and other endogamous populations. Or perhaps the GEDmatch parameters need some tweaking?

Sample related segment from a Jewish kit in AYPR

Sample related segment from a Jewish kit in AYPR

Also a number of married jewish couples I know have discovered that they share a DNA segment. Personally I share 11 cM on the X with my late husband even though I have only one Jewish grandparent. Most testing companies show me as about 30% Jewish.

I can understand that when people live in the same general area for generations, one could easily marry 3rd and 4th cousins. I also know that in the past, cousin marriages were not uncommon among Jews.

I invite all tested fully Jewish people to run that free tool at GEDmatch and then fill out my form on the next page. Please fill it out even when they are not showing as related to help with my statistics.

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Genetic Genealogy Fiction

Aloha from my Hawaii cruise. Apologies to all of you for not getting any blogging or work done while at sea. My brain kept telling me I was on vacation!

One thing I like to do when cruising is to read fiction by the pool or at night. My new favorite mystery author is Nathan Dylan Goodwin who has a series about a forensic genealogist as well as a wonderful new series about a fictional genetic genealogy company called Venator.

I read the second Venator book first, The Sawtooth Slayer, which Nathan was kind enough to send me for a review. It stood up well, even though out of sequence. I then lent it to a friend who is neither a genealogist nor a DNA tester to see if it was an enjoyable read for her and others like her. She really liked it! She told me that now she is interested in doing her family history and maybe even a DNA test! So by all means give this to any friend who is interested in understanding what we do.

Next I had to get the first book, which I really liked also. The characters were particularly engaging. Then of course I started working my way through his other series, which is more genealogy based but still quite enjoyable.

Kitty drinking coffee at Kona Joe’s on the big Island near Kona