I hope I've not missed a post about this previously, but if I have apologies.
Just wondering about the significance of the low overlap segments mentioned in Gedmatch - "'Overlap' is the number of positions that exist in common between both kits, without regard to
whether they match or not. The amount of overlap, along with the largest cM amount,
is usually a good indication of the relative quality of the match.
Matches with low overlap have that field highlighted with a pink or red background, depending on the overlap value."
I have a match on Gedmatch at 18.9cM, largest being 10.8cM, Gen 4.9, Overlap 55122. However, when I view the match, we match on chromosomes 19 (8.1cM) and 22 (9.3cM) and it says estimated generations to MRCA is 5.5. Not a lot different I accept but just wondered the significance of the low overlap.
This match has caught my attention because the person is from Germany and his gedcom shows only German ancestors back quite a few generations. I have a "Germanic" ancestor who died in 1837 but we have no idea where he came from, hence using the term Germanic rather than German. He could have course been from what is now Austria or Switzerland. He never became naturalised but, like many Germanic immigrants, worked for a time as a sugar baker and signed his marriage certificate Johan, which was the big giveaway along with the job and surname. I'm just wondering if this match could be a clue.
Thanks
Nicola
