| Ailwyn Edward Fellowes | 12 March 1905 | 4 December 1905 |
| Rt Hon Auberon Thomas Herbert, Baron Lucas | 6 August 1914 | 25 May 1915 |
| Rt Hon William Waldegrave Palmer, Earl of Selborne | 1915 | 1916 |
| David Alexander Edward Lindsay, Earl of Balcarres | 11 July 1916 | 15 December 1916 |