| Robert Hugh Turton | 1953 | 1954 |
| Rt Hon Osbert Peake | 1953 | 1955 |
| Rt Hon John Archibald Boyd-Carpenter | 20 December 1955 | 16 July 1962 |
| Rt Hon Niall Malcolm Stewart Macpherson | 19 July 1962 | 20 October 1963 |
| Rt Hon Richard Frederick Wood | October 1963 | October 1964 |
| Rt Hon Margaret McCrorie Henderson | October 1964 | August 1966 |