Another problem when trying to make connections with cousins is not all the DNA our parents inherited is passed down to us. Our siblings may have inherited different segments than we have. Since we don't inherit all of our parents DNA we can lose all traces of our early ancestors DNA eventually.
Here is a demonstration of how Gedmatch can confirm our paper trail ancestry. Here we are doing one on one kit comparisons looking for matching segments of DNA.
Nan and I have a paper trail proving our relationship as 5th cousins. We compared our DNA at Gedmatch. Here are the results:
|Nan and Annette compared|
I have another cousin, Sharon, who is from the same Forgey family whose results matched Nan and I. We don't have a paper trail for her relationship to us. We know through Y- DNA testing that we are cousins. She might be a 7th cousin but we're not sure? This is how she matched both Nan and I:
|Sharon and Melanie Compared|
Here is an explanation of why Gedmatch sets it's results at the level they do:
"To qualify as a 'match' in the genealogical time frame, results must have a largest Autosomal segment that has at least 700 SNPs and be at least 7 cM.
It must have BOTH. Results with the largest segment less than 7 cM are highlighted in pink. To check the number of SNPs, click on the 'A' on the same line to view the one-to-one comparison detail."