+-- Delefluer 
      +--Jacques Seraphine Poirier  (1819-)
   +--Maurice Joseph Poirier  (1 Feb 1868-22 Mar 1942)
   |  +--Josephine Lefarve  (1821-)
+--Arthur H Poirier  (26 Jul 1897-19 Mar 1938)
|  |        +--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 
|  +--Marie Odile Langevin  (ABT Sep 1866-8 Dec 1942)
|     |  +--Antoine Moineau 
|     +--Odille Moineau-Moquin  (1830/1833/1837-1883)
|        +--Angelique Legros 
Robert Poirier 
|  +--Walter Barnes  (-BEF 1930)
+--Clara Barnes  (6 Apr 1904-14 Aug 1930)
   +--Henrietta Ganstien  (1862-)