1  Katie Alexandra DAVIS (1901 March, Ontario, Canada – 1996)
   +  Edward Oscar VANCE (1890 – 1972)
      2  Thomas Edward VANCE (1924 – )
         +  (Name Unknown)
            3  Trevor Edward VANCE (1975 – 1995)
      2  William Roy VANCE (1934 – 10 Dec 1934 March, Ontario, Canada)