21st Battalion (Eastern Ontario), CEF

The battalion was authorized on 7 November 1914 and embarked for Britain on 6 May 1915. It disembarked in France on 15 September 1915, where it fought as part of the 4th Canadian Brigade, 2nd Canadian Division in France and Flanders. The battalion was disbanded on 30 August 1920. The 21st Battalion recruited in Eastern Ontario and was mobilized at Kingston, Ontario. ==Officers Commanding==

The 21st Battalion had five Officers Commanding: • Lt.-Col. William St Pierre Hughes, 6 May 1915 – 18 July 1916 • Lt.-Col. E.W. Jones, DSO, 18 July 1916 – 7 January 1917 • Lt.-Col. Thomas F. Elmitt, 7 January 1917 – 1 July 1917 • Lt.-Col. Elmer Watson Jones, DSO, 1 July 1917 – 8 August 1918 • Lt.-Col. H.E. Pense, DSO, 8 August 1918-Demobilization == Perpetuation ==

The 21st Battalion (Eastern Ontario), CEF, is perpetuated by '''The Princess of Wales' Own Regiment'''. ==Battle honours==

The 21st Battalion was awarded the following battle honours: • Mont Sorrel • Somme, 1916 & 1918 • Flers-Courcelette • Thiepval • Ancre Heights • Arras, 1917 & 1918 • Vimy Ridge, 1917 • Hill 70 • Passchendaele • Amiens • Scarpe, 1918 • Drocourt-Quéant • Hindenburg Line • Canal du Nord • Cambrai, 1918 • Pursuit to Mons • France & Flanders, 1915-18 ==Media==

Capt. Herbert W. McBride, who served with the 21st Battalion, wrote two books about his experiences as a member of the unit during the Great War as a sniper and machine gunner: "A Rifleman Went To War" and "The Emma Gees." == Notable members ==