noticed your statement on a search, I am located in London, Ontario, Canada, since 1975.When I first came here in 1975, I was the only listed Tierney in the Phone directory. Our Family originated from the Ottawa area and in particular Fallowfield. (1900 area.) there is still a strong Tierney clan there, but there are two Branches of Tierney's there, and they don't seem to be realted. Wish you luck in your search.