+———Lewis M. MCADAM (1918 – 1995)
  |    
  Glenna MCADAM 
  |            
  |       +———Colin MCNAB (abt 1830 Scotland – 16 Jan 1900)
  |       |
  |   +———Allan J. MCNAB (abt 1878 Ontario, Canada – Mar 1963)
  |   |   |    
  |   |   +———Jane GIBBON (abt 1840 Ontario, Canada – 7 Dec 1893 Thompsonville Cem, Horton Twp, Ontario, Canada)
  |   |
  +———Agnes M. MCNAB (1923 – 1995)
      |    
      +———Rachel MCTAVISH (abt 1889 Ontario, Canada – Nov 1942 Saskatchewan, Canada)