[1][2][3] With the passing of the Militia Act of 1855, the first of a number of newly raised independent militia companies were established in and around the Eastern Townships region of Canada East (now the Province of Quebec).

[1][5] On 6 August 1914, Details of the 53rd Sherbrooke Regiment were placed on active service for local protective duty.

[2] With the formation of the Canadian Expeditionary Force, the regiment provided volunteers for the 12th Battalion, CEF, which sailed to the United Kingdom as part of the First Contingent (later the 1st Canadian Division).

After its arrival in the UK, the battalion provided reinforcements for the Canadian Corps in the field.

[1][3][6] As a result of the 1936 Canadian Militia reorganization, on 15 December 1936, The Sherbrooke Regiment was converted to an infantry machine gun battalion and was redesignated as The Sherbrooke Regiment (Machine Gun).