Source: Per news clipping post by David Archer at 18th Battalion Facebook Page (not group).
Find-A-Grave
Family Search: Private Robert Lennox was born on 22 July 1880, in Moneymore, County Londonderry, Northern Ireland, United Kingdom as the son of Lennox. He immigrated to Canada in 1913 and lived in Toronto, York, Ontario, Canada in 1919. He registered for military service in 1915. In 1915, at the age of 35, his occupation is listed as night watchman, T. E. Eaton and Company in Toronto, York, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 