 Pierre GrignonBorn Nov 16, 1740, died estimated EST. WFT, 1783-1832, approximately 92 years Married 1776 (46 or 47 years married) to:  Louise Domitille De Langlade, daughter of Charles Michel De Langlade and Charlotte Ambroise Bourassa.Born Jan 30, 1759, died Oct 24, 1823, 64 years Child: 1. Augustin GrignonBorn Jun 27, 1780, died estimated EST. WFT, 1809-1871, approximately 91 years | |||