Jean married Marie Gladu on 10 Feb 1708/09 in Montreal, Quebec, Canada. Marie (daughter of Jean Gladu dit Cognac and Marie Langlois) was born on 30 Dec 1674 in Cap de la Madeleine, Quebec, Canada; was christened on 31 Dec 1674 in Cap de la Madeleine, Quebec, Canada; died on 29 Dec 1745 in St. Laurent, Quebec, Canada; was buried on 30 Dec 1745 in St. Laurent, Quebec, Canada. [Group Sheet] [Family Chart]

1. Marie Louise Mainguy dit Lachausse was born on 21 Jul 1709 in Montreal, Quebec, Canada; was christened on 22 Jul 1709 in Montreal, Quebec, Canada; was buried on 16 Jan 1763 in Trois Rivieres, Quebec, Canada.
2. Louis Mainguy was born on 27 Oct 1710 in Montreal, Quebec, Canada; was christened on 27 Oct 1710 in Montreal, Quebec, Canada; and died.
3. Marie Angelique Mainguy was born on 18 Feb 1711/12 in Montreal, Quebec, Canada; was christened on 20 Feb 1711/12 in Montreal, Quebec, Canada; was buried on 7 Oct 1718 in Montreal, Quebec, Canada.
4. Joseph Mainguy was born on 18 Aug 1713 in Montreal, Quebec, Canada; was christened on 18 Aug 1713 in Montreal, Quebec, Canada; and died.
5. Jean Baptiste Mainguy dit Lachausse was born on 28 Nov 1714 in Montreal, Quebec, Canada; was christened on 29 Nov 1714 in Montreal, Quebec, Canada; died on 4 Jul 1776 in Montreal, Quebec, Canada; was buried on 5 Jul 1776 in Montreal, Quebec, Canada.
6. Marie Marguerite Mainguy was born on 7 Jul 1716 in Montreal, Quebec, Canada; was christened on 7 Jul 1716 in Montreal, Quebec, Canada; and died.
7. Joseph Francois Mainguy was christened on 6 Sep 1717 in Montreal, Quebec, Canada; and died.

Guillaume married Julienne Lequitte on 7 Feb 1657/58 in Guillac, France. Julienne was christened on 23 Jul 1634 in Guillac, France; was buried on 23 Mar 1698/99 in Guillac, France. [Group Sheet] [Family Chart]