+———William Alfred POWNALL (12 Apr 1849 Ontario, Canada – 10 Sep 1903 Ontario, Canada)
      |
  +———William Charles POWNALL (8 May 1879 Ottawa, Ontario, Canada – 3 Dec 1951 at home in Vancouver, British Columbia, Canada)
  |   |        
  |   |   +———Aaron Henry DENMARK (1822 Mohawk Valley, New York, USA – 5 Apr 1892 Ottawa, Ontario, Canada)
  |   |   |
  |   +———Sarah DENMARK (23 May 1850 Ottawa, Ontario, Canada – 21 May 1923 Vancouver, British Columbia, 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)
  |    
  Isobel POWNALL 
  |        
  |   +———Thomas KELLS (Ireland – )
  |   |
  +———Ethel Margaret KELLS (19 Jul 1881 Ontario, Canada – 10 Jul 1964 Vancouver General Hospital, Vancouver, British Columbia, Canada)
      |    
      +———Nancy SHILLINGTON (Ireland – )