+———John COWAN (abt 1813 Armagh Co, Ireland – 13 Mar 1865 Huron Co, Ontario, Canada)
      |
  +———John COWAN (11 May 1852 Hemingforth, Quebec, Canada – 20 Jan 1924 Winnipeg, Manitoba, Canada)
  |   |    
  |   +———Mary Jane SAVAGE (17 Jun 1816 near Markethill, County Armagh, Northern Ireland – 5 Apr 1902 Thornhill, Manitoba, Canada)
  |    
  Herbie COWAN ( – d. inf.)
  |        
  |   +———John MCNABB (11 Dec 1833 Kirkintillock, Dunbartonshire, Scotland – 19 Jul 1879)
  |   |
  +———Grace Blair “Gracie” MCNABB (11 Jun 1859 Scotland – 19 Nov 1947 at home in Winnipeg, Manitoba, Canada)
      |        
      |   +———Andrew BLAIR
      |   |
      +———Isabella Eliza “Eliza” BLAIR (30 Mar 1828 Scotland – 8 Nov 1910 RM of Pembina, Manitoba, Canada)
          |    
          +———Grizel DOUGLAS