+———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)
  |    
  John Royden “Jack” PINKERTON (4 Mar 1928 Windsor, Ontario, Canada – 27 Jan 2011 St. Thomas, Ontario, Canada)
  |    
  +———Mary Teresa ROBINSON (1904 – )