Guillaume married Catherine Pelletier on 30 Oct 1679 in Ste. Anne de Beaupre, Quebec, Canada. Catherine (daughter of Georges Pelletier and Catherine Vanier) was born on 16 Feb 1660/61 in Chateau Richer, Quebec, Canada; was christened on 24 Feb 1660/61 in Chateau Richer, Quebec, Canada; died on 21 May 1690 in Hotel Dieu de Quebec, Quebec, Canada; was buried on 21 May 1690 in Hotel Dieu de Quebec, Quebec, Canada. [Group Sheet] [Family Chart]

Guillaume married Marie Barette on 24 Jul 1690 in Ste. Anne de Beaupre, Quebec, Canada. Marie and died. [Group Sheet] [Family Chart]