I am just beginning my research but my father, g-father, gt-gfather were Robert James Aird, William James Aird and I believe Robert in that order. They all lived in NE Iowa (Waukon, Monona & Ion[not on map]). I believe my g-father William was born in 1894 or 1895. Perhaps my gt-gfather Robert was a son or g-son of John & Mary. Let me know if you can make the connection. Also, I am curious about the James Aird mentioned in the Stephen E. Ambrose book, "Undaunted Courage" on page 401. James Aird is mentioned as "a Scotsman trapper from Prarie Du Chien (Wisconsin)". James Aird was the first person from "civilization" to talk with Lewis & Clarke as they returned from their exploration of the West. This would have been in 1806.