| Alastair William Macdonald | Director | 6 Dec 1990 | 11 Apr 1997 | British | 80 years |
| Barbara Christine Jackson | Secretary | 6 Dec 1990 | 11 Apr 1997 | British | - |
| Carolyn Jane Fryer | Secretary | 11 Apr 1997 | 31 Dec 1998 | British | - |
| David Christopher Morris | Director | 6 Dec 1990 | 11 Apr 1997 | British | 101 years |
| John Grant Lithiby | Director | 12 Dec 1994 | 11 Apr 1997 | British | 96 years |
| John Howard Whiteley | Director | 11 Apr 1997 | 31 Jul 2005 | British | 68 years |
| Neil Thompson | Director | 1 Aug 2006 | 12 Dec 2016 | British | 58 years |
| Nicholas Timon Drakesmith | Director | 12 Sept 2005 | 27 May 2011 | British | 61 years |
| Oliver James Digby Marriott | Director | 6 Dec 1990 | 11 Apr 1997 | British | 87 years |
| Patrick Oliver Hall | Director | 11 Apr 1997 | 18 Oct 2000 | British | 77 years |
| Paul Alexander Gittens | Director | 11 Apr 1997 | 17 Jul 2002 | British | 79 years |
| Peter David Marley Shaw | Director | 11 Apr 1997 | 31 Mar 2002 | British | 80 years |
| Richard Martin Peskin | Director | 11 Apr 1997 | 31 Mar 2009 | British | 82 years |
| Robert Montague Noel | Director | 1 Aug 2002 | 30 Sept 2009 | British | 62 years |