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Weird complicated genealogy question: If there are two people who share distant ancestors (see details please)?

Say, the one person's 10th great-grandparents are the same as someone else's 11th great-grandparents, what is the degree of relation? I'm thinking 10th or 11th cousins once removed. Am I close?

Update:

No, it wasn't from a copy and paste tree; I went through birth and census records. What is uncertain is whether or not the person I found who shares the same name as his grandmother is the person who is descended from my 10th great-grandparents. I'm about 90% certain that it's the same person, due to the similarities in dates, name, and location, but there's still a chance I've got the wrong person.

Update 2:

The first census records are indeed from 1790, but towns/churches often kept their own birth, baptism, marriage, and death records. So I was able to verify federal census records to 1790, and then used town and church birth and census records to verify and get back further. Both trees are what I've researched myself; one is mine, one is a friend's. I'm by no means new to genealogy. I'd just never found someone that I know who is related to me, however distant.

As for the person's grandmother, I found what I believe is her birth record; the name matches, the location matches, and the year she was believed to have been born matches. I also found her in the 1940 census. Because her name is so unusual and the spelling of her middle name is unusual (Dianne), I think that it's the right person. I do realize that people can share the same name and not be the same person or be related, but when the name is this unusual and there's no one else with the same na

Update 3:

It cut off my details!

Continued: name anywhere else from what I've discovered, odds are it's the right person. She was born in 1937, and records from that time are pretty accurate, though of course census takers aren't always spot on. After all, they've got my grandmother listed as a widow in 1940, living with my grandfather who is listed as her son, LOL. Why the census taker didn't consider how impossible it was for a woman to have a son 8 years older than her, I'll never know.

2 Answers

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  • Anonymous
    8 years ago
    Favorite Answer

    If they share ... They are

    1st great grandparents ... 2nd cousins

    2nd great grandparents ... 3rd cousins

    and so on.

    So, the degree of cousin is one more than the greatness of the shared grandparents.

    (DANG but that is an awkward sentence.)

    Call "one person" Ralph. Call "some other person" Matilda.

    Ralph's 10th grandparents are the same as one of Matilda's parent's 10th GGPs. That makes Ralph and one of Matilda's parents 11th cousins. Matilda is the daughter, which makes Ralph and Matilda 11th cousins once removed through one of her parents. You were right.

    Others have questioned the tree. Using 30 years as an average time between generations, 10th great grandparents were born 360 years ago, more or less (10 generations for 10th GGP, two more for grandparents and parents.) That makes them born 1653, roughly. There were no censuses then.

  • Maxi
    Lv 7
    8 years ago

    You and your relative are 11th cousins 1 time removed... but that is based on proved cited research that the common blood ancestor is real and not from some online copy and past tree and that is about 300-400 years of proved cited research, of both people.................

    Add: trouble is birth registration and census records only go back approx 150 years.so you have 150-250 years where there is no birth/census to search..genealogy is not 90% probablility or just because someone has the same name, lots of people who are completely unrelated have the same name, genealogy is about factiual research and you don't go back to the next generation before you prove, cite and find enough connecting records........ but of course you already know all this as getting back to your 10th great grandmother you would have been researching primary records for many years to do it....and to 'find' your great grandmother in the other persons 'tree' you would have to had looked at online trees and you have no idea if that is researched, cited, proved, so is very likely to be copy and paste...so be careful of trusting any of it

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