| Rt Hon Margaret McCrorie Henderson | August 1966 | July 1967 |
| Judith Constance Mary Hart, Baroness Hart of South Lanark | July 1967 | November 1968 |
| Rt Hon Stanley Orme | 10 September 1976 | May 1979 |
| Andrew John Bower Mitchell | 7 July 1995 | 2 May 1997 |
| Stephen Cresswell Timms | January 1999 | 29 July 1999 |