| Christopher John Chataway | April 1964 | October 1964 |
| Harold James Boyden | October 1964 | February 1965 |
| Joan Lestor | 1969 | April 1970 |
| William Radcliffe van Straubenzee | June 1970 | November 1972 |
| John Julian Ganzoni, Baron Belstead | 1972 | 1974 |
| Norman Anthony Francis St John Stevas | November 1972 | December 1973 |
| Rev John Cyril Edmondson, Baron Sandford | 1973 | 1974 |
| Timothy Hugh Francis Raison | 1973 | February 1974 |
| Ernest Armstrong | March 1974 | June 1975 |
| Hugh Gater Jenkins | March 1974 | April 1976 |
| Joan Lestor | 1975 | 1976 |
| Margaret Mary Beckett | 1976 | May 1979 |
| David Neil Macfarlane | May 1979 | September 1981 |
| Dr Rhodes Boyson | May 1979 | 1983 |
| William Jeremy Masefield Shelton | 1981 | 1983 |
| Hon William Arthur Waldegrave | September 1981 | 1983 |
| Peter Leonard Brooke | 1983 | November 1985 |
| Robert John Dunn | January 1983 | 1988 |
| Robert Victor Jackson | 1987 | 1990 |
| John Patrick Butcher | 1988 | 1989 |
| Alan Thomas Howarth | 1989 | 11 April 1992 |