| Amanda Jean Marsh | Secretary | 1 Sept 1992 | 29 Apr 1994 | British | - |
| Brian Darnell Newman | Director | 1 Sept 1992 | 29 Mar 2002 | British | 87 years |
| Caroline Susan Freeman | Secretary | 29 Apr 1994 | 3 Apr 1998 | British | - |
| Charles James Hue Williams | Director | 13 Apr 1994 | 1 Oct 2002 | British | 83 years |
| Christian Matthew Maher | Director | 24 Jan 2005 | 5 Aug 2007 | British | 50 years |
| Christopher Stephen Heyworth | Director | 28 Nov 2014 | 30 May 2018 | British | 43 years |
| David Edward Johnson | Director | 20 May 2002 | 28 Jul 2004 | British | 65 years |
| David Percival Lang | Director | 17 Feb 1997 | 22 Jan 2009 | English | 81 years |
| Jeremy Patrick Mckeown | Director | 24 Jan 2005 | 31 Mar 2008 | British | 65 years |
| Kerry Anne Abigail Thomas | Secretary | 28 Apr 1999 | 10 Apr 2002 | British | - |
| Lynda Lavelle | Secretary | 3 Apr 1998 | 28 Apr 1999 | British | - |
| Peregrine Kenneth Oughton Crosthwaite | Director | 1 Sept 1992 | 31 Mar 2004 | British | 76 years |
| Peter Frederick Ross | Director | 1 Sept 1992 | 31 Dec 1996 | British | 87 years |
| Peter Russell Dolby | Director | 22 Sept 1997 | 31 Mar 2003 | British | 74 years |
| Richard Hickinbotham | Director | 20 May 2002 | 29 Oct 2004 | British | 67 years |
| Steven Mark Burgess | Director | 24 Jan 2005 | 28 Nov 2014 | British | 69 years |
| Trevor Anthony Gatfield | Director | 29 Oct 2004 | 31 Dec 2014 | British | 71 years |