Source: 18th Battalion 1915 Nominal Roll.
Find-A-Grave
Family Search: When Private Frederick George Wallace was born on 23 May 1896, in Finchley, Barnet, London, England, United Kingdom, his father, Ernest Ward Wallis, was 23 and his mother, Naomi Brooker, was 24. He married H. Wallace in 1918, in England, United Kingdom. He immigrated to Canada in 1913 and lived in Alton, Hampshire, England, United Kingdom in 1901 and Staines, Middlesex, England, United Kingdom in 1921. He registered for military service in 1914. In 1914, at the age of 18, his occupation is listed as farmer in Ontario, Canada. He died on 18 April 1933, in London, England, United Kingdom, at the age of 36.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 