I took the ancestry.com test as did my 1/2 uncle and 1/2 aunt on my mom's side. I am trying to locate their mother's parents, my grandmother's parents.
I was able to narrow the matches down to some 2nd and 3rd cousins for my Uncle and Aunt but I am having difficulty determining which cousins would be on the paternal and which would be the maternal.
My grandmother was a foster child and we know nothing about her past, no birth certificate, no birth location, nothing.
There is one second cousin who shares 508 cM with my Uncle and she is one generation above him so I was able to determine that she was likely a 1st cousin 1x removed which would mean that her parent is likely a sibling of my grandmother's parent. I was able to locate all of this person's siblings and I have even reached out to second and third cousins but no one has any information that would help me determine which side I am looking on.
How do I determine if I am seeing my grandmother's maternal or paternal side?
I also uploaded the raw dna to gedmatch but haven't been able to get any further.