"Paul, do you think McBirney would be of Clan Birn? The reason I ask is that one of the locals in Dunoon is a McBirney, and has a paper trail going back 15 generations. I haven't seen it, but could enquire if you're interested." Sandy - Perhaps not a n M222 Birne, but without testing, who knows. Bierney is one of the surnames in our project, but so far we have only two. One (66363)currently spells his name Byrne but lists as his EKA a Dennis Birney bc1810 somewhere in Ireland. However he is predicted Hg I2b1(M233). The other (U2463) is surname Bierney and traces to a William Bierney, b1871 in Wexford. He SNP tested L21/L513, and I have him placed in an "Other Airghialla-2" subgroup below my main Monaghan A-2s clusters. He is not at all close to them. I would of course be delighted if the McBierney you know would test, or even allow us to place his pedigree on our project page. Thanks, Paul