Thank you for the information.Yes this is my gggrandfather. I have seen the name spelled L'Heureux once before. Are you researching that branch? I can go not farther that Peter L'Heureux, Paul's father. And this is the first time I have seen Montmarquette.
It looks like we have some family names is common. Do you also show a Francois Pare, married to Charles Labelle? I can not find anything on her family.