Source: War Diary Entry from July 24, 1918 indicating he earned a Mention in Dispatches. See London Gazette, no. 30706, page 6198.
Find-A-Grave
Family Search: Corporal James Wackett was born on 11 November 1884, in Romford, Essex, England, United Kingdom as the son of William Wackett. He immigrated to Canada in 1913 and lived in London, Ontario, Canada in 1919. He registered for military service in 1915. In 1915, at the age of 31, his occupation is listed as labourer.
Military Medal per London Gazette. no. 31340.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 