Source: Brookbank service records re. promotion.
Family Search: When Sergeant Harold Joseph Elkin was born on 19 February 1895, in Milwich, Staffordshire, England, United Kingdom, his father, Benjamin Thomas Elkin, was 27 and his mother, Annie Bedson, was 24. He married Georgina Beatrice Bailey in 1918, in Camberwell, London, England, United Kingdom. He immigrated to Canada in 1913 and lived in Gayton, Staffordshire, England, United Kingdom in 1920. He registered for military service in 1915. In 1915, at the age of 20, his occupation is listed as cook in Toronto, Ontario, Canada. He died on 3 January 1981, in Staffordshire, England, United Kingdom, at the age of 85.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 