+--Pierre Louis Bergevin-Langevin  (7 Jun 1753-25 Jul 1836)
Pierre Bergevin-Langevin  (1 Nov 1785-23 Sep 1863)
|  +--Francois Hebert  (1719-)
+--Agathe Marie Hebert  (1758-Oct 1835)
   +--Marie Arsenault