William Laurie Heggie
- Born: 12 Sep 1915, Brampton, Peel Region, Ontario
- Marriage: Jean Bettina Fleury on 1 Jan 1941
- Died: 29 Sep 1999, Brampton, Peel Region, Ontario aged 84
William Heggie's father, Doctor N. Heggie was the family physician for many family members of William & John B. Harris' family.
William married Jean Bettina Fleury, daughter of John Julius Wesley Fleury and Nellie Harris, on 1 Jan 1941. (Jean Bettina Fleury was born on 23 Apr 1919 in Brampton, Peel Region, Ontario and died on 9 Aug 1995 in Brampton, Peel Region, Ontario.)