Fighting

The 127th battalion was recruited in York County (beginning April 1916) and mobilized in Newmarket, Ontario, with a strength of 32 officers and 972 other ranks. The battalion embarked from Halifax on 24 August 1916, on the troop ship Olympic, and disembarked in the UK on 29 August, and arrived in France in 12 January 1917.

The 126th battalion was recruited in Peel County (West Toronto and Brampton) and mobilized in Toronto, Ontario, with a strength of 32 officers and 822 other ranks. The battalion embarked from Halifax on 14 August 1916, on the troop ship Empress of Britain, and disembarked in the UK on 24 August.

The 125th battalion was recruited in Brant County and mobilized in Brantford, Ontario, with a strength of 32 officers and 9740 other ranks. The battalion embarked from Halifax on 9 August 1916, on the troop ship Scandinavian, and disembarked in the UK on 18 August.

The 124th battalion was recruited and mobilized in Toronto, Ontario, with a strength of 32 officers and 1003 other ranks. The battalion embarked from Halifax on 9 August 1916, on the troop ship Cameronia, and disembarked in the UK on 18 August, and arrived in France 10 March 1917 as a pioneer battalion.

The 123rd battalion was recruited and mobilized in Toronto, Ontario, with a strength of 32 officers and 960 other ranks. The battalion embarked from Halifax on 9 August 1916, on the troop ships Cameronia and Metagama, and disembarked in the UK on 18 August, and arrived in France on 10 March 1917 as a pioneer battalion.

The 122nd battalion was recruited in the Muskoka district beginning 1 December 1915 and mobilized in Huntsville, Ontario and Galt, Ontario by 13 October 1916, with a strength of 26 officers and 686 other ranks. The battalion embarked from Halifax on 2 June 1917, on the troop ship Olympic, and disembarked in the UK on 9 June.

The 121st battalion was recruited in New Westminster and Vancouver and mobilized in New Westminster, British Columbia, with a strength of 32 officers and 1035 other ranks. The battalion embarked from Halifax on 14 August 1916, on the troop ship Empress of Britain, and disembarked in the UK on 24 August.

The 120th battalion was recruited in the Hamilton district and mobilized in Hamilton, Ontario, with a strength of 32 officers and 838 other ranks. The battalion embarked from Halifax on 14 August 1916, on the troop ship Empress of Britain, and disembarked in the UK on 24 August.

The 119th battalion was recruited in the district of Algoma and Manitoulin Island and mobilized in Sault Ste-Marie, Ontario, with a strength of 32 officers and 940 other ranks. The battalion embarked from Halifax on 9 August 1916, on the troop ship Metagama, and disembarked in the UK on 18 August.

The 118th battalion was recruited in the north riding of Waterloo County and mobilized in Kitchener, Ontario, with a strength of 15 officers and 231 other ranks. The battalion embarked from Halifax on 26 January 1917, on the troop ship Scandinavian, and disembarked in the UK on 6 February.