... doing my own research is seemed J2B2 ... was the group associated with the original Macedonian 4th Roman Legion - with clusters occurring where that legion had its bases.
Could that be the answer you're looking for - it seems to make the most sense, its that or maybe Jewish emigres somewhere back in time
Hello Vlad.

Thank you for your thoughts and sorry not to have responded earlier. I only just found your posts.
I have been told, before, that this haplogroup might relate to Roman soldiers who came to Britain from the Balkans. This would certainly be very interesting, but I don't know how it could be proved.
Jewish emigres? Another interesting possibility. But, again, difficult to prove one way or the other.
There must be others with this DNA who are related to my Hamptons. DNA testing is still in its early stages. Hopefully, I shall discover closer connections in time.
Meanwhile, it's really good to 'meet' you, Vlad. Presumably we are very distant cousins

How exciting!