Thank you *so much* for sending all that information! It is a great help. The main thing is that it gives me a starting point in Canada to do further research. Our Tully line has more than one connection in Ontario that I have heard of, but no one has been able to direct me to a specific place in Ontario, so needless to say, searching has been fruitless. This will point me in the right direction.
If you ever run into further correspondents who are inquiring about this specific line and would like info on descendants of Mary Balfe, pls feel free to refer them to me. I'd be glad to help with what little I know so far.