+--Alexander Dulong  (1 SEP 1873-4 JAN 1940)
   +--Frank Reuben Dulong  (14 FEB 1896-JUL 1983)
   |  |        +--Francois Doucet  (ABT 1779-UNKNOWN)
   |  |     +--Louis Doucet  (14 NOV 1806-UNKNOWN)
   |  |     |  |     +--Jean-Simon LeBlanc  (1703-UNKNOWN)
   |  |     |  |  +--Amand LeBlanc  (6 AUG 1738-9 FEB 1805)
   |  |     |  |  |  |  +--Jean Dupuis  (1676-UNKNOWN)
   |  |     |  |  |  +--Jeanne Dupuis  (ABT 1705-UNKNOWN)
   |  |     |  |  |     |        +--Jean Richard-Sansoucy  (20 NOV 1600-UNKNOWN)
   |  |     |  |  |     |     +--Michel Richard  (ABT 1630-4 OCT 1709)
   |  |     |  |  |     |     |  +--Michelle Paullin  (20 OCT 1610-21 MAY 1681)
   |  |     |  |  |     |  +--René-Beaupre Richard  (BET 1657 AND 1659-1693)
   |  |     |  |  |     |  |  +--Madeleine-Marie Blanchard  (1643-1680)
   |  |     |  |  |     +--Anne-Madeleine Richard  (1682-8 DEC 1754)
   |  |     |  |  |        +--Madeleine Landry  (BET 1656 AND 1662-17 FEB 1739/40)
   |  |     |  +--Anne Genevieve LeBlanc  (ABT 1780-UNKNOWN)
   |  |     |     +--Elizabeth Mius  (1741-12 OCT 1807)
   |  |  +--Jean Christopher Doucette  (6 SEP 1829-UNKNOWN)
   |  |  |  +--Marie Anne LeBlanc  (16 OCT 1806-UNKNOWN)
   |  +--Catherine Doucette  (15 MAY 1862-ABT 1904)
   |     +--Marie Angele LeBlanc  (BEF 24 JAN 1831-UNKNOWN)
+--Harry James Dulong  (6 SEP 1921-6 MAY 1988)
|  +--Alma Elizabeth Meuse  (17 AUG 1897-JUL 1983)
Jane Elizabeth Dulong  (Private-)
+--Davina Williamson Clapperton  (19 NOV 1918-17 MAR 1994)