I just did a little more searching and came up with more of your Blondin line which does connect to mine.
Jacques Sureau dit Blondin was the son of Jean Baptiste Blondin and Charlotte Renaud. (That makes him the brother of Joseph Blondin who married Suzanne Schmidt.) Jacques Sureau dit Blondin married Marie Josephe Bigras June 27, 1796 at St. Martin, Quebec.
Jean Baptiste Blondin was the son of Charles Sureau dit Blondin and Marie Anne Charles dite Lajeunesse. Charlotte Renaud was the daughter of Jean Baptiste Renaud and Marie Francoise Auger dit Baron.
Marie Josephe Bigras was the daughter of Jean Baptiste Bigras and Marie Richer. (I have both of their parents, if you need them, too.)
Let me know if you need more information on the Blondin line.