| Alan Charles Symonds | Director | 11 Aug 1991 | 31 Jul 1992 | British | 73 years |
| Alexander Reginald Benton | Director | 21 May 1998 | 23 Jan 2004 | British | 75 years |
| Anthony Charles Taylor | Secretary | 30 Apr 1998 | 29 Jun 1998 | British | - |
| Charles David Vivian Gosling | Director | 11 Aug 1991 | 16 Dec 1997 | British | 86 years |
| David Graham Jones | Director | 24 May 1999 | 20 Mar 2001 | British | 76 years |
| David Keith Tipping | Secretary | 29 Jun 1998 | 10 Apr 2012 | British | - |
| Elizabeth Barbara Cheney | Secretary | 24 Apr 2017 | 31 Dec 2017 | - | - |
| Jeremy Philip Hilton Vickers | Secretary | 19 Jun 2014 | 24 Jul 2015 | - | - |
| Jeremy Philip Hilton Vickers | Director | 23 May 2014 | 24 Jul 2015 | British | 69 years |
| John Beverley Smith Charley | Director | 11 Aug 1991 | 31 Jul 1992 | British | 94 years |
| John Bryan Cousins | Director | 23 Jan 2004 | 28 Nov 2007 | British | 94 years |
| Keith Michael Buchanan | Director | 16 Dec 1997 | 30 Apr 1998 | British | 72 years |
| Marie Smith | Secretary | 16 Dec 1997 | 30 Apr 1998 | British | - |
| Martin Bertram Chambers | Director | 16 Dec 1997 | 30 Apr 1998 | British | 77 years |
| Martin Frank Jewell | Director | 24 May 1999 | 30 Jul 2002 | English | 82 years |
| Martin John Sidders | Director | 9 Apr 2009 | 19 Jun 2014 | British | 68 years |
| Martin John Sidders | Secretary | 11 Apr 2012 | 19 Jun 2014 | - | - |
| Michael Alan Ebbage | Secretary | 11 Aug 1991 | 25 Jan 1993 | British | - |
| Richard Henry Westcott | Director | 30 Apr 1998 | 30 Apr 2001 | British | 79 years |
| Richard John Lotherington | Director | 20 Mar 2001 | 16 Feb 2007 | British | 66 years |
| Robert Henry Haynes | Director | 11 Aug 1991 | 4 Jan 1993 | British | 78 years |
| Shirley Ann Duke | Secretary | 25 Jan 1993 | 16 Dec 1997 | British | - |
| Stephen Charles Casey | Director | 6 May 1999 | 20 Apr 2009 | British | 77 years |
| Steven James Gough | Director | 30 Jul 2002 | 9 Aug 2007 | British | 64 years |
| Susan Gaynor Hide | Secretary | 24 Jul 2015 | 24 Apr 2017 | - | - |