| Angus Howard Fletcher | Director | 31 Jan 2005 | 28 Feb 2011 | British | 76 years |
| Anthony Alexander Preiskel | Director | 7 Nov 2006 | 3 Apr 2009 | British | 79 years |
| Basil Arthur Winham | Director | 23 Mar 1991 | 12 Dec 2005 | British | 106 years |
| Bernadette Allinson | Secretary | 29 Sept 2006 | 22 Mar 2008 | Other | - |
| Bruce Dugald Macphail | Director | 1 Aug 2001 | 12 Dec 2005 | British | 87 years |
| Cynthia Mary Coombe | Secretary | 20 Oct 2010 | 28 Jul 2014 | - | - |
| David Arthur Johnson | Director | 23 Mar 1991 | 9 Mar 1992 | British | 95 years |
| David John Nicholson | Secretary | 22 Mar 2008 | 20 Oct 2010 | Other | - |
| Gary Brooks | Director | 3 Apr 2000 | 12 Dec 2005 | British | 69 years |
| Gary Brooks | Director | 8 Apr 2010 | 31 Dec 2014 | British | 69 years |
| Geoffrey Philip Bloom | Director | 23 Mar 1991 | 12 Jan 1994 | British | 79 years |
| Graham Robert Torode | Director | 23 Mar 1991 | 11 Apr 1997 | British | 70 years |
| Guat Hoon (known As Christina) Ong | Director | 20 Jul 2015 | 10 Oct 2016 | Singaporean | 59 years |
| Joanna Kathleen Mary Bright | Director | 23 Mar 1991 | 1 Jul 1991 | British | 65 years |
| John Ernest Cox | Secretary | 23 Mar 1991 | 27 Jul 2004 | British | - |
| John Huxley Fordyce Anderson | Director | 23 Mar 1991 | 17 Sept 1992 | British | 81 years |
| John Williamson Melville | Director | 14 Apr 1997 | 31 Mar 2004 | British | 77 years |
| Neil Mcdougall | Director | 1 Apr 1993 | 31 Oct 1996 | British | 64 years |
| Philip Alwyn Bignell | Director | 31 Jan 2005 | 29 Sept 2006 | British | 73 years |
| Philip Alwyn Bignell | Secretary | 27 Jul 2004 | 29 Sept 2006 | British | - |
| Rashidi Olugbenga Keshiro | Director | 3 Apr 2009 | 9 Apr 2018 | British | 60 years |
| Raymond Antony Knight | Director | 23 Mar 1991 | 16 Dec 2003 | British | 83 years |
| Raymond Bidlake Corser | Director | 4 Jan 1993 | 31 Oct 2001 | British | 99 years |
| Simon James Edsall | Director | 4 Nov 1996 | 20 Mar 2000 | British | 59 years |
| Stephen Oliver Francis Kerridge | Director | 14 Apr 1997 | 12 Dec 2005 | British | 81 years |
| Stuart Duncan Craig | Director | 23 Mar 1991 | 12 Jan 1994 | British | 72 years |
| Timothy John Randolph Harding | Director | 23 Mar 1991 | 31 Jul 2001 | British | 86 years |
| William Thomas Edgerley | Director | 4 Jan 1994 | 15 Jul 2009 | British | 70 years |