| Adam Robert Zaborniak | Secretary | 6 Apr 1992 | 7 Oct 1994 | British | - |
| Anthony John Brimble | Director | 8 Jun 1993 | 11 Dec 1996 | British | 88 years |
| Christopher Ralph Bates | Director | 3 Feb 1997 | 19 Sept 1997 | British | 63 years |
| Erik Alexander Steven Porter | Director | 6 Apr 1992 | 30 Jul 1997 | British | 87 years |
| Eunice Ivy Payne | Secretary | 27 Jul 2012 | 25 Feb 2013 | - | - |
| Franco Martinelli | Director | 23 Oct 2002 | 17 Jun 2015 | British | 66 years |
| Godfrey Oliver Whitehead | Director | 6 Apr 1992 | 30 Apr 1993 | British | 85 years |
| Helen Margaret Mahy | Director | 31 May 1996 | 31 Jan 2002 | British | 65 years |
| Helen Margaret Mahy | Secretary | 31 Jan 1997 | 31 Jan 2002 | British | - |
| Howard Harry Malleson | Director | 6 Apr 1992 | 8 Jun 1993 | British | 87 years |
| Martin John Read | Director | 6 Apr 1992 | 8 Jun 1993 | British | 85 years |
| Martin Vaux | Director | 8 Jun 1993 | 31 May 1996 | British | 73 years |
| Martyn Robert Frost | Director | 6 Apr 1992 | 1 Dec 1994 | British | 76 years |
| Niall George Campbell | Director | 20 Jun 1997 | 23 Oct 2002 | British | 64 years |
| Nigel Robert Young | Director | 31 Jul 1997 | 30 Nov 2001 | British | 73 years |
| Peter Rose | Director | 7 Feb 1995 | 20 Jun 1997 | British | 68 years |
| Richard William John Fletcher | Director | 11 Dec 1996 | 30 Sept 1999 | British | 81 years |
| Robert James Wetherall | Director | 6 Apr 1992 | 30 Jun 1994 | British | 83 years |
| Robert Scott Martin | Secretary | 1 Feb 2002 | 21 Apr 2004 | British | - |
| Stanley Alan Royall Billiald | Secretary | 19 Nov 2002 | 1 Jul 2009 | Other | - |
| Stephen Robert Trigg | Secretary | 7 Oct 1994 | 31 Jan 1997 | British | - |
| Valerie Francine Anne Teller | Secretary | 1 Jul 2009 | 27 Jul 2012 | British | - |
| William Tame | Director | 22 Jan 2002 | 17 Dec 2014 | British | 72 years |