M. J. Coldwell
- Biography of Coldwell from The Douglas-Coldwell Foundation.
- http://www.dcf.ca/en/mj_coldwell.htm

Coldwell, M.J., Some Regional Problems of Canada
- Text of a speech by the leader of the Cooperative Commonwealth Federation made to the Empire Club on November 24, 1955.
- http://www.empireclubfoundation.com/details.asp?SpeechID=1164&FT=yes

M.J. Coldwell - Canadian Heritage Gallery
- Portrait of the socialist politician.
- http://www.canadianheritage.org/reproductions/20974.htm

M.J. Coldwell, MP
- Party biography of the CCF leader written circa 1952.
- http://www.saskndp.com/history/coldwell.html