| William Clive Bridgeman | 1918 | 1922 |
| Archibald Boyd Boyd-Carpenter | 1922 | 1923 |
| Henry Bucknall Betterton | 1923 | 1924 |
| Margaret Grace Bondfield | 1924 | 1924 |
| Henry Bucknall Betterton | 1924 | 1929 |
| Milner Gray | 1931 | 1931 |
| Robert Spear Hudson | 1931 | 1935 |
| Anthony John Muirhead | 1935 | 1937 |
| Richard Austin Butler | May 1937 | February 1938 |
| Alan Tindall Lennox-Boyd | 1938 | 1989 |
| George Tomlinson | February 1941 | May 1945 |
| Leonard Robert Carr | December 1955 | April 1958 |
| Richard Frederick Wood | 1958 | 1959 |
| Peter John Mitchell Thomas | 1959 | 1961 |
| William Stephen Ian Whitelaw | 1962 | October 1964 |
| Richard William Marsh | 1964 | 1965 |
| Shirley Vivian Teresa Brittain Williams | 1966 | 1967 |
| Roy Sydney George Hattersley | March 1967 | March 1968 |