I find your message a little confusing. You were looking for a Clemence Gelinas who was the mother of Joseph Bessette. After searching high and low for all eleven children of Claude Gelinas Lacourse and Flavie Bonin, a second cousin recited all eleven of them, one being Clemence. I don't have a DOB for her, but she could well have been the right age to be the Clemence Gelinas you were looking for. Apparently she is not.
If you do know Claude and Flavie's children, or where they are listed, I'd be grateful if you would share this information.