| Rt Hon William Douglas Weir | 1918 | 1918 |
| Rt Hon Winston Leonard Spencer Churchill | 10 January 1919 | 13 February 1921 |
| Rt Hon Frederick Edward Guest | 1 April 1921 | 19 October 1922 |
| Rt Hon Sir Samuel John Gurney Hoare, bt | 1922 | 1924 |
| Rt Hon Sir Samuel John Gurney Hoare, bt | 1924 | June 1929 |
| Charles Stewart Henry Vane-Tempest-Stewart, Marquess of Londonderry | 1931 | 1935 |
| Rt Hon Sir Philip Lloyd-Greame | 1935 | 1938 |
| Rt Hon Sir Howard Kingsley Wood | 1938 | April 1940 |
| Rt Hon Sir Samuel John Gurney Hoare, bt | April 1940 | May 1940 |
| Rt Hon Sir Archibald Henry MacDonald Sinclair, bt | 10 May 1940 | May 1945 |
| Rt Hon Maurice Harold Macmillan | May 1945 | July 1945 |
| Rt Hon William Wedgwood Benn, Viscount Stansgate | July 1945 | 1946 |
| Rt Hon Philip John Noel-Baker | October 1946 | 7 October 1947 |
| Rt Hon Arthur Henderson | October 1947 | October 1951 |
| Rt Hon Evelyn Nigel Chetwode Birch | 20 December 1955 | 16 January 1957 |
| Harold Julian Amery | July 1960 | July 1962 |
| Hugh Charles Patrick Joseph Fraser | 16 July 1962 | 1 April 1964 |