Works:
- Third Crossing: A History of the Town and District of Gladstone in the Province of Manitoba - 1946
- The Progressive Party in Canada - 1950 (Winner of the 1950 Governor General's Award for Nonfiction)
- The London Correspondence Inward from Eden Colvile 1849-1852 - 1956
- Alexander Begg's Red River Journal and Other Papers Relative to the Red River Resistance of 1869-70 - 1956
- Manitoba: A History - 1957
- One University: A History of the University of Manitoba - 1960
- The Canadian Identity - 1961
- The Kingdom of Canada - 1963
- The Critical Years: The Union of British North America, 1857-1973 - 1964
- Manitoba: The Birth of a Province - 1965
- Contexts of Canada's Past: Selected Essays of W.L. Morton - 1980