I just threw up a McGee utility comparison of all the M222 in the Clan Donnachaidh project plus the M222 Dunbars from Ysearch. http://clanmaclochlainn.com/R1b1c7/Clanduncan.html Anybody see anything? I'm not sure yet but it appears the Robertson chieftains tested are in a group beginning with 100011 Robertson and go down to 26578 Robertson. They're listed in this group in the project Robertson R1b OGAP08 AB: M222 "Niall of the Nine Hostages" I don't have a link up yet on the site to this file. The Duncan/McConnachie cluster show up as a closely related group in the genetic distance section. Bear in mind that the very first Duncan lived in the 1300s. Some of the numbers I'm seeing in the TMRCA section are not consistent with that date (700 years ago). Columcille lived 521-597 or more in the 1400 year range. John .