Source: Per post by Allan Miller at 149th Battalion CEF – Lambton’s Own Facebook page.
Find-A-Grave
Family Source: When William Augustus Lampman was born on 27 December 1894, in Richfield Center, Genesee, Michigan, United States, his father, Frederick William Lampman, was 37 and his mother, Agnes Elizabeth Robertson, was 32. He married Dorothy Adelaide Wyatt on 1 September 1920, in Walkerville, Windsor, Essex, Ontario, Canada. They were the parents of at least 1 daughter. He lived in Windsor, Sandwich, Essex, Ontario, Canada in 1921 and Detroit Ward 21, Detroit, Wayne, Michigan, United States in 1940. He registered for military service in 1916. In 1916, at the age of 22, his occupation is listed as farmer. He died on 4 February 1965, in Port Huron, St. Clair, Michigan, United States, at the age of 70.
Military Medal per The London Gazette. No. 31173. February 7, 1919. Page 2134.
American Citizen
History of the 18th Battalion CEF, "The Fighting Eighteenth" 