| Alexander Maclachlan | Director | 9 Jun 1997 | 20 Aug 1999 | British | 75 years |
| Alison Grace Sargent | Secretary | 9 Apr 1991 | 9 Jun 1992 | British | - |
| Anthony Phillips | Director | 9 Apr 1991 | 9 Jun 1992 | British | 90 years |
| David Laurence Edelman | Director | 9 Apr 1991 | 16 Feb 1994 | British | 78 years |
| David Martin Maxfield Dutton | Director | 12 May 1992 | 13 Oct 1992 | British | 84 years |
| Derek Lucie-smith | Director | 10 Apr 1993 | 8 Jan 1996 | British | 79 years |
| Derek Lucie-smith | Secretary | 10 Apr 1993 | 8 Jan 1996 | British | - |
| Frederick Brian Corby | Director | 29 Jul 1996 | 29 Mar 2001 | British | 74 years |
| Gail Michelle Parkin | Director | 9 Apr 1991 | 9 Jun 1992 | British | 64 years |
| Geoffrey Bruce Hoffman | Director | 9 Apr 1991 | 9 Jun 1992 | English | 79 years |
| George Wilfred Stout | Director | 10 Apr 1993 | 15 Apr 1997 | British | 81 years |
| Graham Bryan Stanley | Director | 8 Jan 1996 | 14 Dec 2017 | British | 63 years |
| Graham Robert Sidwell | Director | 1 Nov 2000 | 13 Dec 2013 | British | 73 years |
| Isidore Michael Carivalis | Secretary | 18 Mar 1996 | 29 Jul 1996 | British | - |
| John Hamilton Marples | Director | 10 Apr 1993 | 29 Mar 2001 | British | 99 years |
| Kenneth Jackson | Director | 9 Apr 1991 | 9 Jun 1992 | British | 98 years |
| Marc Edward Charles Gilbard | Secretary | 29 Jul 1996 | 28 Aug 1996 | British | - |
| Nicholas William John Edwards | Director | 19 Nov 2009 | 30 Oct 2019 | British | 53 years |
| Odile Lesley Griffith | Director | 10 Dec 1998 | 29 Mar 2001 | British | 72 years |
| Paul Brooks | Director | 15 Apr 1997 | 23 Sept 1999 | British | 72 years |
| Richard Charles Tunstall Redmayne | Director | 10 Apr 1993 | 29 Jul 1996 | British | 88 years |
| Saira Johnston | Secretary | 14 Jun 2013 | 12 Jan 2017 | - | - |
| Stephen Alexander Goldstein | Director | 10 Apr 1993 | 22 Mar 1994 | British | 81 years |
| Stephen Jackson | Director | N/A | 9 Jun 1992 | British | 75 years |
| Timothy Robin Llewelyn Sanderson | Secretary | 28 Aug 1996 | 10 Sept 2012 | British | - |