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Ethical dilemmas

Help please on understanding Ancestry.com DNA results.

1 reply

JohnPrescottsPyjamas · 14/05/2023 15:29

I’m researching my family tree, purely from interest, and I seem to have got a a very strong match and would appreciate someone with knowledge of DNA to explain and interpret the results.

To give a bit of a background, my late grandfather was apparently a bit of a charmer and managed to have two families with two women at the same time although both women and all the children knew about each other and even shared a household for some time!

I’ve matched with an unknown person, but there is no clue in their public online Ancestry tree where any link might be. I’ve messaged them twice, several months apart, and firstly they were a ‘bit busy’ and the latest reply was that their computer is broken. I’m taking from this that they don’t want to connect, which is completely understandable, although it does seem puzzling they’re even on a genetic research site if that’s the case.

The results indicate we are related 3.7 generations back, so fairly close. Our CMS are 44.4 and SNPs 6397. My question is; is it possible this person is potentially a child of my grandfather too? He was from overseas and maintained regular contact with his home country. This person also happens to be from there too.

I’ve attached a screen shot if it helps.

Help please on understanding Ancestry.com DNA results.
Help please on understanding Ancestry.com DNA results.
OP posts:
GulesMeansRed · 01/07/2023 14:23

@JohnPrescottsPyjamas late to see this but I do know a wee bit about Dna and genealogy. My first thought is that 44.7 cM is not really a strong match. If your grandfather had a second family, grand children of that family would be your half-cousins. The best site to unravel the possibilities is https://dnapainter.com/tools/sharedcmv4 where you put in the Centimorgans you share with another person and it suggests the most likely relationship. A half cousin match would be in the range of 156-979 cM with 449 being most common. So that’s loads more than you have in common with this person.

A match at 44.4 cM indicates going back 8 generations- are you sure your match is 44.4 and not 444? Because if it is 444 that’s a strong indicator of half first cousin.

Shared cM Project 4.0 Tool v4 with relationship probabilities

An interactive version of the shared cM data with probabilities showing the most likely relationships

https://dnapainter.com/tools/sharedcmv4

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