Thomas Glendenning Hamilton was a Canadian doctor, school board trustee and member of the Manitoba legislature, from 1915 to 1920. He was also a Spiritualist and is best known for the thousands of photographs he took during séances held in his home in Winnipeg in the early 1900s. His wife, Lillian May Hamilton, and his daughter, Margaret Hamilton Bach, were co-researchers and continued this enquiry into life after death after he died.

The 1915 Manitoba general election was held August 6, 1915 to elect members of the Legislative Assembly of the Province of Manitoba, Canada. The Liberals under Norris won a landslide majority with 40 seats, replacing the Conservative government that had ruled the province since 1899.