I was a regular here a few years ago, but my brain isn't working as well as it should do, so I stopped coming - if I couldn't sort myself out, how could I help others work their problems through.
My first post was incorrect, as flagged by both of you.
X is cousin to 2 of the 3 of us, ½ sibling to the third. I am one of the cousins.
Ambly -
"What is the likelihood of me and Y sharing 26 cMs/28cMs respectively with a match, but my cousins sharing none/" Does this mean yourself and Y (the son of X) have a Shared Match with a person - one of you at 26cM, the other at 28cM - but A and B don't report any Shared Match with that same person?"
That is correct.
"Do A and B have any Shared Matches at all with Y? What (other) Shared matches do you have with Y, if any? "
All 4 of us share many, many matches to my paternal grandparents.
"Also, when was this - ie: in relation to who?
"A's father was stationed in Japan and engaged to be married"
"B's father would have been c.14 years old"
End of the 2nd world war. Conception of this baby would have been summer 1945, when A's father was not in this country, and B's father would have been c 14.
B's father may have been evacuated, so not under the watchful eyes of parents! But the mother was an older teenager.
As for ages in - 26 M, 25 M, 19 F, 13 M.
Biggles -
"Your Aunt may have had a child that was then adopted."
X met up with his mother in later life, DNA matches with her side of the family now, so not an option. She was unwilling to give him any information about his father.
I can't follow your last paragraph, I'm afraid, my brain can't take it in.
But working it through in my brain now, the putative father, my uncle, passed one lot of DNA to one cousin eg A, a different lot of DNA to X. Which is common enough.
My other uncle may or may not have inherited that bit of DNA from grandparents, didn't pass it down to cousin eg B.
My father inherited it and passed it down to me.
Thank you both for your insight.
Margaret
