+———John Thomas Sr. THOMAS (1751 London, England – 9 Jun 1822 Vaudreiul, Quebec, Canada)
              |
          +———Charles THOMAS (9 Sep 1793 Moose Factory, Northwest Territories, Canada – 8 Mar 1873 Golden Lake, Ontario, Canada)
          |   |    
          |   +———Margaret CREE (1750 James Bay, Rupert's Land, Canada – 31 Dec 1831 Moose Factory, Northwest Territories, Canada)
          |
      +———Richard Story THOMAS (14 Jun 1838 Golden Lake, Ontario, Canada – 19 Jun 1902 North Algona, Ontario, Canada)
      |   |        
      |   |   +———John MANNALL (Ispswich, Suffolk, England – )
      |   |   |
      |   +———Hannah “Smurm” MANNALL (31 Aug 1795 Kenogamissi House, Northwest Territories, Canada – 16 Apr 1868 Ontario, Canada)
      |
  +———Alexander Christopher “Christie” THOMAS (24 May 1864 – 1947)
  |   |    
  |   +———Elizabeth MCLENNAN (Nov 1837 Antrim, Ireland – 14 Jun 1918)
  |    
  Mildred Victoria THOMAS (18 Sep 1894 Ontario, Canada – aft 1911)
  |        
  |   +———Robert PIERCE
  |   |
  +———Ellen Jane PIERCE (9 Sep 1865 – 1911 Killaloe, Ontario, Canada)
      |    
      +———Jane BRISCOE