I don't have this Joseph Médéric. I have his parents and 4 children only. Since I'm missing all the other children, it'a good indication that they moved out of Quebec. So this may be your line. If it is, I can provide you with 7 more generations. Let me know at: email@example.com
By the way, the notion of first name and middle name doesn't exist for French Canadians. We have a surname and a bunch of names. The usual name retained for daily use is usually the last name written in on the birth certificate. Ex: my names are Joseph Albert Philippe Roger. My parents have always called me Roger. So in the case of Joseph Médéric, Médéric is is normal name and all the different males of the family go by different names even if they have a Joseph or a Mary.