Cecilia Lillian Harris
- Born: 5 Oct 1886, Toronto, Ontario
- Marriage: Doctor William James Decoursey on 7 May 1912 in Choteau Congregational Church, Choteau, Montana
- Died: 20 Aug 1974, Rimbey, Alberta aged 87
Cecilia married Doctor William James Decoursey, son of Felix Augustus Decoursey and Frances Ann Kollack, on 7 May 1912 in Choteau Congregational Church, Choteau, Montana. (Doctor William James Decoursey was born on 15 Apr 1879 in Otero, New Mexico, U.S.A. and died on 1 Feb 1961 in Rimbey, Alberta.)
Events of marriage:
• Emigration, 1918. Emigrated from Choteau, Montana in 1918 to Rimbey, Alberta where they lived until their deaths.