Canadian units in World War I

List of Canadian divisions in World War I:

1st Canadian Division

1st Canadian Brigade

1st Canadian Battalion (Ontario Regiment), CEF. August 1914 – November 11, 1918; 2nd Canadian Battalion (Eastern Ontario Regiment), CEF. August 1914 – November 11, 1918; 3rd Canadian Battalion (Toronto Regiment), CEF. August 1914 – November 11, 1918; 4th (Central Ontario) Battalion, CEF. August 1914 – November 11, 1918.

2nd Canadian Brigade:

   5th Battalion (Western Cavalry), CEF. August 1914 – November 11, 1918;
   6th Battalion, CEF. August 1914 – December 1914 (Became Canadian Cavalry Depot);
   7th Canadian Battalion (1st British Columbia), CEF. August 1914 – November 11, 1918;
   8th Canadian Infantry Battalion (90th Regiment), CEF. August 1914 – November 11, 1918;
   10th Battalion (Canadians), CEF. January 1915 – November 11, 1918.

3rd Canadian Brigade:

   13th Battalion (Royal Highlanders of Canada), CEF. August 1914 – November 11, 1918.
   14th Battalion (Royal Montreal Regiment), CEF. August 1914 – November 11, 1918.
   15th Canadian Battalion (48th Highlanders of Canada), CEF. August 1914 – November 11, 1918.
   16th Canadian Battalion (The Canadian Scottish), CEF. August 1914 – November 11, 1918.

4th Canadian Brigade:

   The brigade was dispersed in January 1915.
   9th Battalion, CEF. August 1914 – January 1915. To the Canadian Training Depot.
   10th Battalion (Canadians), CEF. August 1914 – January 1915. To the 2nd Canadian Brigade.
   11th Battalion, CEF. August 1914 – January 1915. To the Canadian Training Depot.
   12th Battalion, CEF. August 1914 – January 1915. To the Canadian Training Depot.

Pioneers:

   1st Canadian Pioneer Battalion. March 1916 – February 1917. Became the 9th Canadian Railway Battalion.
   107th Canadian Pioneer Battalion. March 1917 – May 1918. Absorbed by the 1st Canadian Engineer Brigade.

Attached TROOPS:

   17th Battalion, CEF. August 1914 – January 1915. To the Canadian Training Depot.
   18th Battalion Canadian Infantry. August 1914 – September 1914. Disbanded.
   Newfoundland Companies. October 1914 – December 1914. Left the division and was made up to battalion strength. The Newfoundland Regiment then joined the British 29th Division in September 1915.

2nd Canadian Division

4th Canadian Brigade

   18th (Western Ontario) Battalion Canadian Infantry. 1 October 1914 – 11 November 1918;
   19th (Central Ontario) Battalion Canadian Infantry. 19 October 1914 – 11 November 1918;
   20th (Central Ontario) Battalion Canadian Infantry. October 1914 – 11 November 1918;
   21st (Eastern Ontario) Battalion Canadian Infantry. 19 October 1914 – 11 November 1918.

5th Canadian Brigade:

   22nd (Canadien Francais) Battalion Canadian Infantry. 21 October 1914 – 11 November 1918;
   24th (Victoria Rifles) Battalion Canadian Infantry. 22 October 1914 – 11 November 1918;
   25th (Nova Scotia) Battalion Canadian Infantry. 28 October 1914 – 11 November 1918;
   26th (New Brunswick) Battalion Canadian Infantry. 2 November 1914 – 11 November 1918.

6th Canadian Brigade

   27th (City of Winnipeg) Battalion Canadian Infantry. 21 October 1914 – 11 November 1918;
   28th (North West) Battalion Canadian Infantry. 19 October 1914 – 11 November 1918;
   29th (Vancouver) Battalion Canadian Infantry. 24 October 1914 – 11 November 1918;
   31st (Alberta) Battalion Canadian Infantry. 16 November 1914 – 11 November 1918.

Pioneers:

   2nd Canadian Pioneer Battalion. March 1916 – June 1917. To the 2nd Canadian Engineer Brigade.

3rd Canadian Division

7th Infantry Brigade:

   The Royal Canadian Regiment. December 1915 – November 11, 1918;
   Princess Patricia's Canadian Light Infantry. December 24, 1915 – November 11, 1918;
   42nd (Royal Highlanders) Battalion Canadian Infantry. December 1915 – November 11, 1918;
   49th (Edmonton) Battalion Canadian Infantry. December 1915 – November 11, 1918.[3]

8th Infantry Brigade:

   1st Battalion, Canadian Mounted Rifles, CEF. December 1915 – November 11, 1918;
   2nd Battalion, Canadian Mounted Rifles, CEF. December 1915 – November 11, 1918;
   4th Battalion, Canadian Mounted Rifles, CEF. December 1915 – November 11, 1918;
   5th Battalion, Canadian Mounted Rifles, CEF. December 1915 – November 11, 1918.[3]

9th Infantry Brigade: (Joined the Division in January 1916)

   43rd (Cameron Highlanders) Battalion Canadian Infantry. January 1916 – November 11, 1918;
   52nd (North Ontario) Battalion Canadian Infantry. January 1916 – November 11, 1918;
   58th (Central Ontario) Battalion Canadian Infantry. January 1916 – November 11, 1918;
   60th (Victoria Rifles) Battalion Canadian Infantry. January 1916 – April 30, 1917. (Disbanded)
   116th (Ontario County Infantry) Battalion Canadian Infantry. April 1917 – November 11, 1918.[3]

Pioneers:

   3rd Canadian Pioneer Battalion. January 8, 1916 – May 1917 (Disbanded);
   123rd Canadian Pioneer Battalion. March 1917 – June 1918. To the 3rd Canadian Engineer Brigade.[3]