| Allan Michael Bamber | Director | 15 Aug 2003 | 22 Aug 2019 | British | 81 years |
| Andrew Loyn Watson | Director | 8 Apr 2004 | 7 Jan 2009 | British | 59 years |
| David Lloyd Hughes | Secretary | 9 Feb 2004 | 28 Feb 2013 | British | - |
| Gary Hetherington | Director | 11 Jan 1992 | 1 Nov 1996 | British | 72 years |
| John Graeme Beckett | Director | 27 Mar 2000 | 23 Oct 2009 | British | 73 years |
| Katherine Mary Sharman | Director | 27 Feb 1997 | 4 Jan 2000 | British | 80 years |
| Katherine Mary Sharman | Secretary | 20 Sept 1994 | 4 Jan 2000 | British | - |
| Kathryn Mary Hetherington | Director | 11 Jan 1992 | 4 Apr 1997 | British | 74 years |
| Michael Lee | Director | 20 Sept 1994 | 14 Apr 1997 | British | 78 years |
| Paul Morgan | Director | 8 Dec 1999 | 1 Jan 2017 | British | 66 years |
| Peter John Sephton | Director | 20 Sept 1994 | 24 Feb 2003 | British | 82 years |
| Ralph William James Rimmer | Director | 1 Jul 1998 | 8 Jun 2009 | British | 61 years |
| Richard Anthony Pepper | Director | 11 Jan 1992 | 9 Dec 1999 | British | 72 years |
| Sarah Clare Wood | Secretary | 4 Jan 2000 | 9 Feb 2004 | British | - |
| Terence Reginald Murray Sharman | Director | 20 Sept 1994 | 5 Oct 1999 | British | 83 years |
| Terence Reginald Murray Sharman | Secretary | 11 Jan 1992 | 20 Sept 1994 | British | - |
| Timothy Lawrence Adams | Director | 24 Nov 1997 | 24 Feb 2003 | British | 81 years |