Hi all,

I've done a Y-111 test. Separately, through documentary research, I've identified a

This

My question, on which I'd very much appreciate advice, is which Y-DNA test I should get my

In particular, just to check:

Thanks in advance!

I've done a Y-111 test. Separately, through documentary research, I've identified a

__potential__*who has a very well documented lineage. Due to geographical proximity and a similar (yet uncommon) surname, it seems relatively likely that we share a common ancestor within the surname period.**(but*as yet unconfirmed) relativeThis

*potential relative*has kindly agreed to take a Y-DNA test. If we turn out to be a match, this will be a big step for me towards overcoming a brick wall and hopefully prove a connection to the well documented lineage. In addition to confirming whether or not we share a recent common ancestor, I'd like to estimate how many generations ago our MRCA lived to as accurate a degree as possible, so I can then follow up with targeted documentary research.My question, on which I'd very much appreciate advice, is which Y-DNA test I should get my

*potential relative*to take? My instinct is to have them take the Y-37 (given how much cheaper it is), to confirm whether or not we share a common ancestor. If we do, I could then upgrade both my and their tests to a Big Y-700, to get the most accurate prediction of how many generations back our MRCA is.**Is my approach the right one?**In particular, just to check:

- Whether a Y-37 match is sufficient to prove a recent shared ancestor? (I'm pretty sure on the answer to this one but I'm so new to genetic genealogy I thought it worth asking the question anyway.)
- How accurately a Y-37 match can predict how many generations back the MRCA is?
- Whether Big Y-700 is significantly more accurate at predicting how many generations back an ancestor is shared, when compared to Y-111 or Y-37? Assuming so, how accurate is it possible to be?

Thanks in advance!

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