I show three Marie's as daughters of Francois Boisvert and Genevieve Martel. They could be all the same Marie. But usually that is indicated on the marriage record and these were not. All were married at St. Francois du Lac Yamaska Quebec, Where Francois had moved to and I believe he died there.
1. Marie married 25-10-1785 to Jean Baptiste Gagon 2.Marie married 15-4-1799 to Antoine Gautier 3.Marie married 7-1-1789 to Gabriel Descoteau
They have also a daughter Catherine married in 18-11-1788 to Pierre Descoteaux he was the son of Pierre Descoteaux and Vict. Chaperon. Could this be the one?