Robert Alfred Corbett was a Canadian businessman and politician who was a member of the House of Commons of Canada from 1978 to 1993.
The Progressive Conservative Party of Canada was a centre-right federal political party in Canada that existed from 1942 to 2003.
John Diefenbaker, the 13th prime minister of Canada (1957–1963)
Joe Clark, the 16th prime minister of Canada (1979–1980)
Brian Mulroney, the 18th prime minister of Canada (1984–1993)
Kim Campbell, the 19th prime minister of Canada (June – November 1993)