Source: Elgin County and the Great War
Family Search: When Pte. Leonard Archibald Munn was born on 17 April 1898, in Dutton, Elgin, Ontario, Canada, his father, Archibald Munn, was 42 and his mother, Sarah Ann Burdon, was 35. He married Irene A Mannila on 12 October 1940, in Detroit, Wayne, Michigan, United States. They were the parents of at least 2 sons. He immigrated to Detroit, Wayne, Michigan, United States in 1924 and lived in Highland Park, Wayne, Michigan, United States in 1930 and Detroit Ward 1, Detroit, Wayne, Michigan, United States in 1940. He registered for military service in 1915. In 1950, at the age of 52, his occupation is listed as foreman. He died on 9 April 1978, in Detroit, Wayne, Michigan, United States, at the age of 79, and was buried in Cowal, Elgin, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 