| Andrew George Smith | Director | 27 Jan 2000 | 12 Feb 2001 | British | 77 years |
| Andrew George Smith | Secretary | 21 Jan 2000 | 12 Feb 2001 | British | - |
| Andrew James Donald Martin | Director | 20 Nov 1992 | 23 Sept 1996 | British | 71 years |
| Andrew John Bowman | Director | 5 Sept 2014 | 5 Mar 2018 | British | 54 years |
| Ann Hird | Director | 23 Apr 2012 | 15 Nov 2012 | British | 69 years |
| Anthony Nicholas Greatorex | Director | 3 Feb 2014 | 5 Sept 2014 | British | 58 years |
| Antony Vincent Holt | Director | 7 Jan 2003 | 23 Apr 2012 | British | 67 years |
| Antony Vincent Holt | Secretary | 7 Jan 2003 | 23 Apr 2012 | British | - |
| Brian John Bailey | Secretary | 22 Feb 2001 | 20 Aug 2002 | British | - |
| Charles Mcgarrigle | Director | 1 Apr 1994 | 29 Nov 1999 | British | 91 years |
| David Antony Holland | Director | 29 Mar 1999 | 2 Dec 1999 | British | 82 years |
| David Bamford | Director | 30 Jul 1999 | 2 Dec 1999 | British | 64 years |
| David Francis Tildesley | Director | 1 Nov 2004 | 1 Jun 2009 | British | 65 years |
| David William Crawford | Director | 30 Aug 2013 | 6 Dec 2013 | British | 56 years |
| Duncan Morrison Brown | Director | 20 Nov 1992 | 6 Apr 2004 | British | 69 years |
| Georgia Ryan | Director | 12 Jul 2001 | 24 Nov 2008 | British | 59 years |
| James Jonathan Nelson | Director | 18 Feb 2003 | 8 Aug 2007 | British | 79 years |
| Jeremy Peter Small | Secretary | 28 Feb 2008 | 23 Apr 2012 | British | - |
| John Robert Simmonds | Director | 8 Aug 2007 | 16 Aug 2010 | British | 69 years |
| John Sweeney | Secretary | 20 Nov 1992 | 1 Aug 1994 | British | - |
| Jonathan Mark Phillips | Director | 14 Sept 2001 | 18 Jun 2009 | British | 61 years |
| Mark Alan Howlett | Director | 12 Jul 2001 | 30 Jun 2003 | British | 58 years |
| Mark Robert Pearson | Director | 19 Jul 2005 | 11 May 2007 | British | 60 years |
| Nicholas Mckenzie Herbert Burns | Director | 20 Nov 1992 | 12 Aug 2014 | British | 59 years |
| Nicolas Norman Bedford | Director | 23 Apr 2012 | 4 May 2012 | British | 67 years |
| Peter Anthony Taylor | Director | 1 Dec 1998 | 1 Feb 2001 | British | 64 years |
| Peter Anthony Taylor | Director | 26 Apr 2004 | 3 Jun 2009 | British | 64 years |
| Peter Gray | Director | 1 Jun 2009 | 31 Mar 2010 | British | 80 years |
| Peter Russell Pennington Legh | Secretary | 20 Aug 2002 | 7 Jan 2003 | British | - |
| Philip John Anderson | Director | 8 Aug 2007 | 23 Apr 2012 | British | 62 years |
| Roderic Henry Patrick Rennsion | Secretary | 4 Dec 2007 | 29 Feb 2008 | British | - |
| Stephen Sharp | Director | 23 Apr 2012 | 3 Feb 2014 | British | 61 years |
| Susan Lesley Ring | Director | 12 Aug 2014 | 5 Mar 2018 | British | 65 years |
| Terence Bernard Bennett | Director | 20 Nov 1992 | 29 Jan 2004 | British | 76 years |
| Vanda Suzanne Cox | Director | 12 Jul 2001 | 1 Dec 2003 | British | 67 years |
| William Anthony Watson | Secretary | 1 Aug 1994 | 16 Oct 1999 | British | - |