| James Edward Hubert Gascoyne Cecil, Viscount Cranborne | 1900 | 1903 |
| Rt Hon Thomas McKinnon Wood | November 1908 | 23 October 1911 |
| Ronald John McNeill | 1922 | 1924 |
| Arthur Augustus William Harry Ponsonby | 1924 | 1924 |
| Ronald John McNeill | 1924 | 1925 |
| Richard Austin Butler | February 1938 | July 1941 |
| Peter John Mitchell Thomas | 1961 | 1963 |