| Allan Richard George Dunn | Director | 8 May 1991 | 28 Feb 1993 | British | 80 years |
| Andrew James Duxbury | Director | 9 Jun 2016 | 5 Apr 2017 | British | 51 years |
| Barry Kenneth Luckett | Director | 8 May 1991 | 21 Jan 2002 | British | 84 years |
| Brian Henry Baybut | Director | 9 Oct 1997 | 15 Sept 1998 | British | 80 years |
| Claud Stimpson | Director | 8 May 1991 | 28 Apr 1995 | British | 86 years |
| David Calverley | Director | 1 Aug 1995 | 1 Sept 2001 | British | 85 years |
| David Calverley | Director | 1 Nov 2002 | 30 Jun 2005 | British | 85 years |
| David Cyril Smith | Director | 15 May 2001 | 31 Jul 2012 | British | 64 years |
| David Edward Hinton | Director | 8 May 1991 | 31 May 2016 | British | 69 years |
| David Thomas Lester | Director | 31 Jan 1995 | 1 Dec 1998 | British | 81 years |
| Francis Eamon Nelson | Director | 8 May 1991 | 30 Sept 2012 | British | 75 years |
| George Robert Marsh | Director | 1 Sept 2001 | 31 Oct 2002 | British | 77 years |
| Gordon Stanley Whitmore | Director | 8 May 1991 | 28 Jun 1991 | British | 95 years |
| Graeme Andrew Culliton | Director | 15 May 2001 | 30 Apr 2004 | British | 58 years |
| John Andrew Try | Director | 8 May 1991 | 31 Dec 1998 | British | 84 years |
| John Fidler | Director | 1 Jan 1999 | 31 May 2004 | British | 78 years |
| John William Homer | Director | 1 Oct 1998 | 31 Jul 2004 | British | 65 years |
| Joseph James Armitage | Director | 26 Jul 2004 | 30 Sept 2012 | British | 74 years |
| Kevin Allan Corbett | Director | 9 Jun 2016 | 22 Sept 2021 | British | 66 years |
| Malcolm Charles Hunt | Director | 8 May 1991 | 2 Jun 1995 | British | 83 years |
| Martin Cooper | Director | 30 Jun 2017 | 30 Jun 2019 | British | 55 years |
| Martyn John Drake | Director | 1 Oct 1998 | 31 Jan 2002 | British | 70 years |
| Michael Bernard George Puttick | Director | 8 May 1991 | 8 Jun 2001 | British | 77 years |
| Michael John Ellis | Director | 5 Dec 1996 | 10 Mar 1997 | British | 81 years |
| Michael William Herbert Bridges | Director | 8 May 1991 | 22 Sept 2021 | British | 71 years |
| Mike Lelorrain | Director | 9 Jun 2016 | 30 Jun 2017 | British | 70 years |
| Neil David Cocker | Director | 30 Jun 2019 | 1 Apr 2025 | British | 60 years |
| Peter Frederick Keiller | Director | 8 May 1991 | 31 Dec 2004 | British | 82 years |
| Peter Robert Howell | Director | 8 May 1991 | 1 Aug 1995 | British | 93 years |
| Richard Barraclough | Director | 28 Jun 1991 | 29 Feb 2012 | British | 71 years |
| Richard Barraclough | Secretary | 8 May 1991 | 29 Feb 2012 | British | - |
| Robert Frederick Stone | Director | 1 Jan 1997 | 31 Dec 1999 | British | 82 years |
| Roger Graham Craft | Director | 13 Jun 1994 | 1 Nov 1996 | British | 76 years |
| Stuart Anthony Strudley | Director | 8 May 1991 | 2 Jul 1991 | British | 79 years |