We used Ancestry to help build the initial family tree but after that you have to do some digging to find each province’s/state’s method of finding historical records. For Quebec that’s the BANQ. We also had an old genealogical record that a Québécois preacher wrote ages ago about the ancestral line (that’s what the French in my OP says, I’ve been studying French and knew enough to parse it)

The subreddit for this was massively helpful