Source: Per post from Operation Picture Me via 18th Battalion Facebook Group.
Family Search: When Private Robert Leslie Burke was born on 5 December 1890, in Blenheim, Chatham-Kent, Ontario, Canada, his father, Charles William Burk, was 26 and his mother, Marilda Elliott, was 20. He married Erie Lillian Ruth Pettit on 29 July 1910, in Chatham, Kent, Ontario, Canada. He lived in Kent, Ontario, Canada for about 10 years. He registered for military service in 1915. In 1915, at the age of 25, his occupation is listed as printer in Chatham, Kent, Ontario, Canada. He died on 1 January 1960, in Harlingen, Cameron, Texas, United States, at the age of 69, and was buried in Restlawn Memorial Park, La Feria, Cameron, Texas, United States.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 