+———John Timothy PINKERTON
      |
  +———John Grant PINKERTON (12 Nov 1861 Levis, Quebec, Canada – 8 Dec 1931 Ottawa, Ontario, Canada)
  |   |    
  |   +———Amelia GRANT
  |    
  John Grant PINKERTON (23 Jan 1901 Ontario, Canada – )
  |        
  |   +———Aaron Henry DENMARK (1822 Mohawk Valley, New York, USA – 5 Apr 1892 Ottawa, Ontario, Canada)
  |   |
  +———Mary A. DENMARK (20 Oct 1868 Ottawa, Ontario, Canada – 1949 Windsor, Ontario, Canada)
      |        
      |   +———William WHITEHEAD (abt 1797 Kent, England – 8 Aug 1844 Ottawa, Ontario, Canada)
      |   |
      +———Mary Ann WHITEHEAD (18 Dec 1828 England – 3 May 1911 Ottawa, Ontario, Canada)
          |    
          +———Mary Jane PARKER (abt 1805 Waterford, Ireland – 6 Jun 1888 Ottawa, Ontario, Canada)