A Segment-ology TIDBIT
In genealogy if we look for Thomas BARTLETT in the census and find three entries with that name, we don’t discard them all if we cannot immediately figure it out. We record them all and look for more evidence. The same concept applies to DNA. Record all the Common Ancestors you find with a Match. Even if the Match is a 2nd cousin (2C), she may also be a 5C or 8C on a different line. One of her shared segments may go back to that more distant ancestor – it’s happened to me! Don’t disregard a “pile up” of shared segments which Triangulate (just because they may be from a very distant ancestor). Science tells us that some of those 7-20cM shared segments will be with closer cousins – it’s happened to me, often. Don’t disregard a distant cousinship beyond 5C with a Common Ancestor. Save the clues. As new Matches come in, you may find supporting evidence for that CA in the TG – it’s happened to me. I have 11 out of 35 Matches, on one TG with the same 7G grandparents (some of them are 6C and 7C, the rest are 8C).
[22E] Segment-ology: Save the Clues TIDBIT by Jim Bartlett 20170103