Source: A Gathering Our Heroes
Family Search: When Captain Robert Ryerson Hartry was born on 22 August 1890, in Seaforth, Huron, Ontario, Canada, his father, William Hartry, was 37 and his mother, Jane Armstrong, was 31. He lived in Huron, Ontario, Canada in 1901 and London, Ontario, Canada in 1915. He registered for military service in 1915. In 1915, at the age of 25, his occupation is listed as instructor of manual training in London, Ontario, Canada. He died in 1959, at the age of 69, and was buried in Fonthill, Pelham, Niagara, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 