| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 1 May 2002 | Other | - |
| Andrea Margaret Thomas | Secretary | 21 Jul 2008 | 23 Mar 2009 | Other | - |
| Basil Richard Ryland Butler | Director | 25 Jun 1992 | 8 Jul 1998 | British | 96 years |
| Brian Peevor | Secretary | 1 Apr 1994 | 31 Aug 1997 | British | - |
| Byron Elmer Grote | Director | 8 Jul 1998 | 1 Mar 1999 | British And Us Citiz | 78 years |
| Christopher Barton Hunt | Director | 1 Mar 2006 | 31 Jan 2008 | American,british | 63 years |
| Christopher John Hedley | Director | 1 Sept 1997 | 1 May 2000 | British | 77 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | Other | - |
| Craig William Coburn | Director | 1 Mar 2006 | 1 Nov 2016 | American | 62 years |
| David Campbell | Director | 1 Dec 2003 | 1 Mar 2006 | British | 58 years |
| David Christopher Allen | Director | 1 Jan 2000 | 1 Feb 2002 | British | 72 years |
| David Stanford Knapp | Director | 1 Jan 2012 | 21 Jun 2017 | American | 61 years |
| David William John Grant | Director | 1 Sept 2004 | 2 Oct 2007 | British | 74 years |
| Dawn Noel | Secretary | 1 Feb 2006 | 3 Nov 2006 | British | - |
| Dipesh Jayantilal Shah | Director | 25 Jun 1992 | 31 Aug 1997 | British | 73 years |
| Dominic Emery | Director | 1 Aug 2010 | 11 Feb 2014 | British | 63 years |
| Dominique Martin Caroline Verstappen | Director | 1 Sept 2005 | 1 Mar 2006 | Dutch | 59 years |
| Eric Bern Stidman | Director | 21 Jun 2017 | 7 Sept 2020 | American | 53 years |
| George Leland Edwards | Director | 1 Mar 2005 | 13 Jun 2008 | Us Citizen | 69 years |
| Graeme David Albert Brebner | Director | 1 May 2003 | 1 Sept 2004 | British | 74 years |
| Graham Garfield Baxter | Director | 1 May 2000 | 28 Feb 2003 | British | 75 years |
| Janet Elvidge | Secretary | 1 Aug 2004 | 1 Feb 2006 | Other | - |
| Janet Elvidge | Secretary | 3 Nov 2006 | 21 Jul 2008 | Other | - |
| Jerry William Mckinney | Director | 1 Oct 2009 | 1 Jan 2012 | American | 64 years |
| John Stewart Morgan | Director | 1 Aug 2010 | 28 Feb 2011 | British | 71 years |
| John William Downer | Director | 1 Jul 2003 | 1 Mar 2005 | British | 77 years |
| Julian John Watts | Secretary | 25 Jun 1992 | 31 Mar 1994 | New Zealand | - |
| Justin Charles Maclennan Adams | Director | 28 Feb 2011 | 27 Feb 2012 | British | 55 years |
| Katrina Ann Landis | Director | 4 Dec 2007 | 1 Aug 2010 | United States | 67 years |
| Laura Waters Folse | Director | 21 Jun 2017 | 31 Mar 2019 | American | 68 years |
| Nicholas Charles Coleman | Director | 1 Feb 2002 | 1 May 2003 | British | 74 years |
| Richard Lovell Feil | Director | 1 Aug 2003 | 1 Dec 2003 | British | 62 years |
| Roderick Guy Mason | Director | 27 Feb 2012 | 21 Jun 2017 | British | 62 years |
| Roy Leslie Tooley | Secretary | 1 May 2002 | 1 Aug 2004 | British | - |
| Stephen Frye Gates | Director | 1 Mar 1999 | 1 Jan 2000 | American | 80 years |
| Stephen Westwell | Director | 1 Dec 2003 | 1 Sept 2007 | British | 68 years |
| Steven Wellesley Percy | Director | 25 Jun 1992 | 23 Sept 1992 | United States | 80 years |
| Stuart Patrick Brannigan | Director | 1 Jul 2003 | 1 Dec 2003 | British | 65 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |
