The P.J.P. resulted from a split at the 1968 Liberal Party convention between supporters of former Governor-General Richard Mason and his former Minister of Home Affairs, Grover Speigal. Although Manitoba Governor Jason Winters was selected as a compromise candidate, Mason and approximately half of his supporters left the convention and organized a rival party, the Peace and Justice Party.
The P.J.P. chose to nominate Professor James Volk of Burgoyne University for Governor-General, and within days, the new party was able to field candidates for all 150 Grand Council seats. In the 1968 Grand Council elections, seventeen of the P.J.P.'s candidates were elected.
The party mounted a major demonstration program in 1969, which was hampered by the disclosure of the Michigan City Spy Ring. The leaders of the P.J.P. rejected the charges as a fabrication of the C.B.I., and warned of the dawn of a new age of Starkism in the C.N.A.
As of 1971, the P.J.P. advocates the unilateral disarmament of the C.N.A. and international control of the atomic bomb.
Sobel's sources for the Peace and Justice Party are Jay Knowles' In the Day of the Cuckoo (New York, 1970) and Robert Mead's Peace and Justice, Sanity and Reason (New York, 1970).
In For All Nails, the moderate and radical factions of the P.J.P. split after the 1973 Grand Council elections to form the Reform and Justice Party and the Masonist Party.