Cap Badge - 231st (Seaforth Highlanders of Canada) Battalion, CEF Note: Other Ranks of 72nd Battalion wore cap badges of 72nd Regiment with C.E.F. collar badges and shoulder titles: Other Ranks of 231st Battalion wore cap badges of Imperial Seaforths with C.E.F. collar badges and shoulder titles. Source: History of the 16th Battalion, CEF, page 365 The 231st Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War. Based in Vancouver, British Columbia, the unit began recruiting in early 1916 in that city and the surrounding district. After sailing to England on 11 April 1917, the 661 man battalion was absorbed into the 24th Reserve Battalion on April 22, 1917. The 231st Battalion, CEF had one Officer Commanding: Lieut-Col. F. E. Leach.