| George Henry Roberts | 17 August 1917 | 10 January 1919 |
| Sir Robert Stevenson Horne | 1919 | 1920 |
| Rt Hon Dr Thomas James Macnamara | 19 March 1920 | 19 October 1922 |
| Rt Hon Sir Clement Anderson Montague-Barlow | 1922 | 1924 |
| Rt Hon Sir Arthur Herbert Drummond Ramsay Steel-Maitland, bt | November 1924 | 1929 |
| Rt Hon Margaret Grace Bondfield | 8 June 1929 | 24 August 1931 |
| Sir Henry Bucknall Betterton, bt | 25 August 1931 | 29 June 1934 |
| Rt Hon Oliver Frederick George Stanley | 1934 | 1935 |
| Rt Hon Alfred Ernest Brown | 7 June 1935 | 14 May 1940 |
| Rt Hon Richard Austin Butler | May 1945 | July 1945 |
| Rt Hon Aneurin Bevan | January 1951 | April 1951 |
| Rt Hon Edward Richard George Heath | October 1959 | July 1960 |
| Rt Hon John Hugh Hare | 1960 | 1963 |
| Rt Hon Joseph Bradshaw Godber | October 1963 | October 1964 |