| Rt Hon Herbert Stanley Morrison | 1940 | 1940 |
| Rt Hon Sir William Maxwell Aitken, Baron Beaverbrook | 1941 | 1942 |
| Ralph Assheton | 1942 | 1942 |
| George Russell Strauss, Baron Strauss | October 1947 | October 1951 |
| Rt Hon John Selwyn Brooke Lloyd | October 1954 | April 1955 |
| Rt Hon Reginald Maudling | April 1955 | January 1957 |