When Marie Olive Sinclair was born on 3 December 1910, in Sedgewick, Flagstaff County, Alberta, Canada, her father, Angus Charles Sinclair, was 32 and her mother, Annie Dorland Johnstone, was 35. She married Charles Dolan on 2 April 1938, in Brazeau No. 77, Alberta, Canada. They were the parents of at least 2 sons. She lived in Red Deer, Red Deer County, Alberta, Canada in 1911 and Camrose County No. 22, Alberta, Canada in 1926. She died on 21 August 2009, at the age of 98, and was buried in Sylvan Lake, Red Deer County, Alberta, Canada.