| Brian Patrick Eighteen | Director | 31 Mar 1991 | 21 Aug 1991 | British | 71 years |
| Brian Patrick Eighteen | Secretary | 31 Mar 1991 | 21 Aug 1991 | British | - |
| Christopher Richard Davis | Director | 31 Mar 1991 | 9 Jan 2000 | British | 76 years |
| David Arthur Moss | Director | 18 Dec 1992 | 8 Dec 1994 | British | 86 years |
| Graham Marshall Brown | Director | 8 Apr 2006 | 21 Sept 2006 | British | 80 years |
| Graham Marshall Brown | Secretary | 14 Dec 1996 | 1 Mar 2003 | British | - |
| John Ashton Norgate | Director | 21 Aug 1991 | 13 Oct 1995 | British | 83 years |
| Julian Robert Morse | Director | 3 Jan 1995 | 20 Nov 1996 | British | 81 years |
| Laurence Dent | Secretary | 31 Dec 2007 | 31 Dec 2010 | British | - |
| Michael John Stansfield | Director | 20 Nov 1996 | 14 Jan 2005 | British | 69 years |
| Neil Cooper | Director | 23 Nov 2015 | 19 Jan 2017 | British | 58 years |
| Nicholas Mark Trott | Director | 1 Nov 1995 | 28 Feb 1997 | British | 61 years |
| Nicholas Mark Trott | Secretary | 3 Jan 1995 | 14 Dec 1996 | British | - |
| Nicolas John Townsend | Director | 20 Nov 1996 | 8 Apr 2006 | British | 79 years |
| Paul Derek Crispin | Director | 31 Mar 1991 | 30 Jun 2021 | British | 68 years |
| Richard John Russell Brooke | Director | 31 Dec 1992 | 20 Nov 1996 | British | 65 years |
| Richard John Russell Brooke | Director | 21 Sept 2006 | 31 Dec 2022 | British | 65 years |
| Richard John Russell Brooke | Secretary | 21 Aug 1991 | 3 Jan 1995 | British | - |
| Robert Granville Douglas | Secretary | 1 Mar 2003 | 31 Dec 2007 | British | - |
| Ronald Arthur Mcdowell | Director | 31 Mar 1991 | 29 Aug 1991 | British | 75 years |
| Terence William Massingham | Director | 21 Aug 1991 | 30 Oct 1992 | British | 73 years |