I don't think this is the same line...although I will not rule it out. My BLAIR's of York Co. show up in Carroll twp and Warrington twp, around Dillsburg. I have a Brice Blair (d. 1836) buried with his wife Mary (d. June 1845)at the Monaghan Presby. Church, Dillsburg. I understand that there were some Blair's further south in the county, but don't know if it is the same line, or how connected.