Source: November 1917 casualty.
Family Search: When Private Joseph George Frederick Fletcher was born on 30 August 1896, in London, England, United Kingdom, his father, Joseph Benjamin Fletcher, was 26 and his mother, Hannah Elizabeth Wallace, was 23. He immigrated to Canada in 1913 and lived in Chatham, Kent, Ontario, Canada in 1916. He registered for military service in 1916. In 1916, at the age of 20, his occupation is listed as labourer in Chatham, Kent, Ontario, Canada. He died on 9 November 1917, in Passendale, West Flanders, Belgium, at the age of 21.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 