| Alison Virginia Allen | Director | 1 Jan 1996 | 19 Mar 1998 | British | 64 years |
| Alison Virginia Allen | Director | 4 Apr 2003 | 7 Apr 2003 | British | 64 years |
| Anthony George Laurence Alexander | Director | 31 Jul 1991 | 30 Sept 1996 | British | 88 years |
| Anthony Ross Cotton | Director | 31 Jul 1991 | 31 Jul 1991 | British | 83 years |
| Brian Edward Rossiter | Secretary | 19 Mar 1998 | 29 Jan 1999 | British | - |
| Christopher John Scott Wordsworth | Director | 1 Feb 1994 | 19 Mar 1998 | British | 70 years |
| David Warren Lyons | Director | 18 Jan 2016 | 18 May 2022 | British | 63 years |
| David William Reavell | Director | 1 Jun 1996 | 19 Mar 1998 | British | 73 years |
| Graham Dransfield | Director | 31 Jul 1991 | 30 Oct 1992 | British | 75 years |
| Graham Philip Evans | Director | 1 Nov 1992 | 29 Sept 1993 | British | 70 years |
| James Christian Hopkins | Director | 1 Nov 1992 | 29 Sept 1993 | British | 67 years |
| John Edward Douglas Stevart | Director | 31 Jul 1991 | 31 Oct 1992 | British | 82 years |
| John Frank Meddins | Director | 1 May 1993 | 23 Jun 1999 | British | 91 years |
| John Frank Meddins | Secretary | 4 Oct 1993 | 19 Mar 1998 | British | - |
| John Frank Meddins | Secretary | 29 Jan 1999 | 23 Jun 1999 | British | - |
| Malcolm James Ablett | Director | 31 Jul 1991 | 31 Mar 2003 | British | 74 years |
| Paul William Nicholson | Director | 1 Nov 1992 | 31 Mar 2010 | British | 69 years |
| Paul William Nicholson | Secretary | 23 Jun 1999 | 31 Mar 2010 | British | - |
| Peter Dee-shapland | Director | 30 Mar 2011 | 17 May 2019 | British | 62 years |
| Peter John Turner | Director | 31 Jul 1991 | 18 Mar 1998 | British | 82 years |
| Peter Joseph Harper | Director | 31 Jul 1991 | 31 Jul 1991 | British | 91 years |
| Peter Simon Dee Shapland | Director | 1 Jan 1996 | 19 Mar 1998 | British | 62 years |
| Robin Willars | Director | 1 Jun 1996 | 19 Mar 1998 | British | 79 years |
| Roger Thomas Virley Tyson | Secretary | 31 Jul 1991 | 4 Oct 1993 | British | - |
| Ross Anthony Norman Chiese | Director | 31 Jul 1991 | 30 Oct 1992 | British | 76 years |