Mary Isabelle Granger
- Born: 8 Aug 1908, Belleville, Hastings County, Ontario
- Marriage (1): John Dickinson Harris on 1 Jul 1927 in Donlands United Church, Toronto, Ontario
- Marriage (2): John Barrie Graham about 1941 in Toronto, Ontario
- Died: 17 Apr 1947, Toronto, Ontario aged 38
- Buried: Pine Hills Cemetery, Toronto, Ontario
Cause of her death was Cancer.
Another name for Mary was Mae.
May Duckworth has May (Granger) Harris' birthdate documented as August 7, 1908. Most are sure that her actual date of birth was August 8, 1908.
Mary married John Dickinson Harris, son of Francis George Harris and Margaret Ann Dickinson, on 1 Jul 1927 in Donlands United Church, Toronto, Ontario. (John Dickinson Harris was born on 27 Dec 1906 in 233 Bain Avenue, Toronto, Ontario, died on 8 Dec 1939 in Hamilton, Ontario and was buried on 11 Dec 1939 in Pine Hills Cemetery, Toronto, Ontario.) The cause of his death was Coronary Thrombosis (Aneurysm).
Mary next married John Barrie Graham, son of William Barry Graham and Marion Scott, about 1941 in Toronto, Ontario. (John Barrie Graham was born on 2 Jun 1909 in County of York, Toronto, Ontario.)