The Right Hon. Clark, Charles Joseph (Joe)
39 years, 11 months, 30 days
1979.06.04
- Sworn to office
Political Party:
Progressive Conservative Party
The Right Hon. Mulroney, Martin Brian
45 years, 5 months, 30 days
1984.09.17
- Sworn to office
Political Party:
Progressive Conservative Party
The Right Hon. Meighen, Arthur
46 years, 24 days
1920.07.10
- Sworn to office
Political Party:
Unionist (Conservative and Liberal)