Private Sidney Bainbridge was born in Carlisle, England, on April 13, 1893. Bainbridge was a theological student at the University of Alberta when he enlisted with the 5th Overseas University Co. in Montreal, Quebec on December 13, 1915. He proceeded overseas to England on the S.S. Olympic in April, 1916, and then to France in June, 1916 where he was attached to the Princess Patricia's Canadian Light Infantry. While serving with the PPCLI Bainbridge was wounded, and a result of his wounds was invalided back to Canada on the hospital ship H.S. Letitia in June of 1917 and then demobilized in July of 1918.
Pte. Sidney Bainbridge's service record (#487386) can be viewed/downloaded in pdf format through Library and Archives Canada.