+--Treffle J Valley  (1853/1883-1907)
Treffle J Valley  (1881-1905)
|  +--Moise Poirier  (1827-1912)
+--Alphonsine Poirier  (1859-1931)
   |     +--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 
   +--Tharsile Bergevin 
      |  +--Albert Mercier 
      +--Angelique Mercier  (ABT 1789-AFT 1861)
         +--Madeleine Sauve