| Sir Austin Uvedale Morgan Hudson, bt | 1945 | 1945 |
| William Foster | 1945 | 1946 |
| Hugh Todd Naylor Gaitskell | May 1946 | October 1947 |
| Lancelot William Joynson-Hicks | November 1951 | December 1955 |
| Aubrey Jones | 1955 | 1957 |
| Sir David Lockhart-Muir Renton | December 1955 | January 1957 |