Source: August 1918 casualty.
Family Search: When Private William Wyatt Hammond was born on 10 December 1890, in Brentwood, Essex, England, United Kingdom, his father, Charles Hammond, was 26 and his mother, Louisa Wyatt Hammond, was 26. He immigrated to Canada in 1913 and lived in South Weald, Essex, England, United Kingdom for about 10 years and Chesley, Bruce, Ontario, Canada in 1916. He registered for military service in 1916. In 1916, at the age of 26, his occupation is listed as farmer in Chesley, Bruce, Ontario, Canada. He died on 26 August 1918, in Beaurains, Pas-de-Calais, France, at the age of 27, and was buried in Wancourt, Pas-de-Calais, Nord-Pas-de-Calais, France.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 