Hi Ed, These haplogroups do not help to determine the country of origin in 1730. They're very very old, prehistoric. All they tell is what is called 'deep ancestry'. What you probably want to pay more attention to is matches. Yes your matches will be the same haplogroup but there is variation in them. However the researchers also tell us that a match doesn't really matter unless both of your ancestors are in the same place at the same time. Matches for 67 markers include ones that match 0n 60, perhaps, depending on how fast your DNA mutates. What you are probably missing is some helpful info about how to use the DNA results. Maybe a book or article on line can help with that, esp. your DNA tester's website. It's hard to find information appropriate for our level. The Newbie DNA list can help too. And you should be a member of the Ireland DNA project. And of course and O'Brien project. Those'll help you connect with others with the same DNA. Linda Merle ----- Original Message ----- From: "Edwin O'Brien" <[email protected]> To: [email protected] Sent: Friday, April 9, 2010 8:45:00 PM GMT -05:00 US/Canada Eastern Subject: [S-I] Y-DNA Hi, I see all of these posts about what a help that being tested for Y - DNA is. Yet, in my case,there is a lot of information but nothing conclusive. I have a couple of cousins with surname Peak who have had their YDNA tested. One of them has an oral history that our Peak ancestor was Scotch-Irish and came from Ulster to Charleston about 1730. We have 8 generations in America. My cousin is halotype R1b1b2a1a4 which is pretty definitive. Yet, the country of origin is not really defined. Am I missing something? Ed O'Brien ------------------------------- To unsubscribe from the list, please send an email to [email protected] with the word 'unsubscribe' without the quotes in the subject and the body of the message