I am not aware of any connection with Bozeman's line and those who were in Canada.I don't have anything showing Bozeman or any of this children having David in their names. As to Mary Abigail Adair, I had to try to remember why I had her connected to Thomas Harrington. If Bozeman was the son of William and Mary (Moore) Adair as some believe, Abigail who married John Burleson was a daughter of William and Mary. I have a lot of family trees that I access through Family Treemaker, which is the software that I use, and I think there was a tree that had her as well as Thomas Harrington. This is interesting; Thomas Harrington of Tryon Co., N.C. married to: Sarah Shipman (she was the dtr. of Daniel Shipman and Elizabeth BURLESON.) Of their children, Jacob Harrington married Elizabeth IRVINE/BEATY.