1975
- Winner : Thatcher
- Ballots : 2
- Candidates : Margaret Thatcher, Edward Heath, Hugh Fraser, William Whitelaw, Geoffrey Howe, James Prior, John Peyton.
In the first ballot, Margaret Thatcher recieved 49.1% of the vote with 130. Edward Heath recieved 44.9% of the vote with 119. Hugh Fraser recieved 6% of the vote with 16. Heath resigned but another ballot was needed. Thatcher recieved 53.3% of the vote and was declared the winner, becoming the first female leader of the Conservative Party.
January 1981
- Winner : Grosvenor
- Ballots: 1
- Candidates : Vincent Garton, Robert George Grosvenor.
After one ballot, Robert George Grosvenor recieved 80% of the vote with 274 votes. For more information, see; Conservative leadership election of 1981.
July 1981
- Winner : Noble-Gordon
- Ballots: 1
- Candidates : Vincent Garton, Robert Noble-Gordon.
After one ballot, Robert Noble-Gordon recieved 68% of the vote with 230 votes. For more information, see; 2nd Conservative leadership election of 1981.