Reconstruction Party of Canada
The Reconstruction Party was founded by Henry Herbert Stevens, a long-time Conservative MP who served as Minister of Trade and Commerce in the Depression-era government of R. B. Bennett. Stevens argued for drastic economic reform and government intervention in the economy. He quit the Bennett government and formed the Reconstruction Party when it became evident that the Tories would not implement his proposals.
The Reconstruction Party ran in the 1935 election and despite receiving 10% of the vote only elected one MP - Henry Herbert Stevens, who rejoined the Conservatives in 1939.
See also: List of political parties in Canada