Source: Per record of promotion for Corporal Joseph Sutton Pratt, reg. no. 225630.
Family Search: Corporal William Stewart was born on 20 January 1887, in Edinburgh, Scotland, United Kingdom as the son of George Stewart. He had at least 2 sons and 2 daughters with Alice Sophia Gordon. He immigrated to Canada in 1913 and lived in London, Ontario, Canada in 1921. He registered for military service in 1915. In 1915, at the age of 28, his occupation is listed as paper-ruler in London, Ontario, Canada. He died on 29 May 1968, in Kingston, Frontenac, Ontario, Canada, at the age of 81, and was buried in Glenhaven Memorial Gardens, Kingston, Frontenac, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 