+———William CUNNINGHAM
      |
  +———John Nelson CUNNINGHAM (1857 – )
  |   |    
  |   +———Rosey
  |    
  Catherine Orillia CUNNINGHAM (22 Jul 1888 Colborne, Ontario, Canada – )
  |        
  |   +———John SPRUNG (1824 Prince Edward Co, Ontario, Canada – 22 Jan 1908 Hullett, Ontario, Canada)
  |   |
  +———Mary Letta SPRUNG (9 Feb 1854 Ontario, Canada – 11 Mar 1931 Swansea, New York, USA)
      |    
      +———Catherine B. POTTER (1831 Prince Edward Co, Ontario, Canada – 13 May 1907 Hullett, Ontario, Canada)