Welcome to WikiTree!
I was able to find your tree on Ancestry, and thus get a bit of an idea about what you have accomplished so far! It's a lot!
WikiTree has a feature that is helpful when asking these kinds of questions: There is a field near the bottom of the green question box where you can put the profile of the person you are asking about. It's right near where you tagged your question with the family name Wade. If you connect your question to the profile, it's good for people like me, who want to help but don't want to just do over again what you have already done. That way we can see what you have so far. It also links back the other direction, so anyone who later visits the profile can see the discussion that happened here on the G2G Forum.
So first i would recommend that you build a profile for Michael or his wife or a child or two, just so everyone here can see what we have already.
In terms of linking back to Ireland: Have you done any DNA on that side of your family? Irish records are hard but Irish DNA is getting quite well documented, so your own Y-DNA might help narrow down the county in Ireland, and even your auDNA (or better yet, your Dad's) might still have genetic signatures that indicate a specific part of Ireland. So i would recommend doing your DNA, either at Ancestry for the auDNA or FamilyTreeDNA for the Y-DNA, or both.
If you tag your question with DNA and Ireland, you might get the attention of someone who has more specific advice for you.
PS - i suspect that if you did a few WikiTree profiles for your French Canadian lines, you would quickly be able to connect up with many of your ancestors who are already here, and you would find lots and lots of cousins, probably me included!