In addition to the monument at its head office in Toronto, the Canadian Bank of Commerce honoured employees from each branch who served in the First World War. This plaque was commissioned shortly after the war and dedicated to the bank's 1701 employees who served in the war, 321 laid down their lives. The names of seven employees of the Sarnia Canadian Bank of Commerce who served in the war are listed on the plaque.
The plaque features the caduceus logo of the bank - two snakes winding around a winged staff at the upper left, and two poppies intertwined with a symbolic olive branch at the lower right. It originally hung in the Sarnia branch located downtown at Front and Lochiel Streets. In 1961, the bank merged with the Imperial Bank of Canada to form the Canadian Imperial Bank of Commerce (CIBC). The plaque was moved to the local legion in 2018 when the CIBC downtown branch closed and merged into the CIBC London Road Banking Center.
The Canadian Bank of Commerce went to great lengths to commemorate its staff that served in the war including a two-volume book of staff profiles and accounts of their war experiences.