Cap Badge - Canadian Army Pay Corps, CEF During the First World War, each unit of the First Canadian Contingent (later named the 1st Canadian Division) which proceeded overseas in October 1914, had on its establishment a Paymaster and a Pay Sergeant who were members of the units with which they served by who did not belong to the CAPC. The CAPC provided initially a Chief Paymaster, Command Paymaster, and Paymaster, Canadian Troops in France, with six field cashiers. In 1917, all unit Paymasters and Pay Sergeants were transferred to the CAPC. Personnel of the CAPC also served in Siberia with the Canadian contingent there. The establishment of the office of the Chief Paymaster grew to a strength of approximately 2,000 all ranks and civilians during the war. In recognition of services rendered by the Corps, His Majesty the King approved the grant of the prefix "Royal" to the Canadian Army Pay Corps in 1920.