| Rt Hon George Clement Tryon | 3 April 1940 | 14 May 1940 |
| Rt Hon Sir John Charles Walsham Reith | October 1940 | February 1942 |
| George Tomlinson | August 1945 | 7 February 1947 |
| Rt Hon Richard Rapier Stokes | 1950 | 1951 |
| Rt Hon Sir David McAdam Eccles | 1951 | 1954 |
| Evelyn Nigel Chetwode Birch | 1954 | 1955 |
| Rt Hon Patrick George Thomas Buchan-Hepburn | 1955 | 1957 |
| Harmar Nicholls | 1958 | 1961 |
| John Adrian Louis Hope | October 1959 | July 1962 |