No leadership conventions were held during the existence of the Liberal-Progressive Party (1932–1961).
Stuart Garson was the unanimous choice of coalition Members of the Legislative Assembly (MLAs) to replace Bracken, in a vote held on December 22, 1942.
In 1948, Douglas L. Campbell was selected as Premier by a vote among MLAs in the governing Liberal-Progressive/Progressive Conservative coalition, defeating Progressive Conservative leader Errick Willis.
Bill Jackson was originally a candidate, but dropped out in October 1980.
Had the results not been weighted by constituency, Lamoureux would have defeated Hasselfield by 1,019 votes to 997.