+-- Delefluer 
         +--Jacques Seraphine Poirier  (1819-)
      +--Seraphine Poirier  (17 Feb 1865-28 Jul 1939)
      |  +--Josephine Lefarve  (1821-)
   +--Rosario (Sim) S Poirier  (5 Aug 1896-13 Jan 1970)
   |  |        +--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 
   |  |  +--Sylvain Langevin  (8 Oct 1835-6 Jun 1923)
   |  |  |  |  +--Albert Mercier 
   |  |  |  +--Angelique Mercier  (ABT 1789-AFT 1861)
   |  |  |     +--Madeleine Sauve 
   |  +--Exore Langevin  (1 Nov 1876-26 Aug 1957)
   |     |  +--Antoine Moineau 
   |     +--Odille Moineau-Moquin  (1830/1833/1837-1883)
   |        +--Angelique Legros 
+--Vincent H Poirier  (9 Sep 1921-6 Nov 1996)
|  |  +--Fredrick Kuhn 
|  +--Julia Ann Kuhn  (18 Jun 1900-23 Jan 1958)
|     +--Margaret Riggins 
William Poirier 
+--Anne Elizabeth Howard