| Alan George Cooper | Director | 24 Mar 1997 | 12 Oct 1998 | British | 88 years |
| Andrew Charles Warner Robertson | Director | 1 Dec 1992 | 1 Apr 1995 | British | 81 years |
| Barbara Boyewska | Director | 28 Nov 2007 | 21 Jan 2011 | British | 69 years |
| Barbara Boyewska | Secretary | 28 Nov 2007 | 21 Jan 2011 | British | - |
| Caroline Garrett | Secretary | 11 Feb 2011 | 14 Oct 2011 | - | - |
| Caroline Garrett | Director | 15 Nov 2011 | 1 Sept 2013 | British | 50 years |
| Colin Keith Mitchell | Director | 24 Mar 1997 | 1 May 1998 | British | 79 years |
| Craig Anderson | Director | 12 Oct 1998 | 8 Oct 2002 | British | 63 years |
| David Badcock | Secretary | 20 Oct 1995 | 1 Jan 2001 | British | - |
| Duncan John Lucas Bates | Director | 28 Nov 2007 | 21 Jun 2012 | British | 68 years |
| Janet Mary Ravenscroft | Director | 12 Oct 1998 | 8 Oct 2002 | British | 69 years |
| Janet Mary Ravenscroft | Secretary | 1 Jan 2001 | 8 Oct 2002 | British | - |
| John Leonard Barber Harris | Director | 1 Dec 1992 | 23 Feb 1996 | British | 82 years |
| John Leonard Barber Harris | Secretary | 1 Dec 1992 | 1 Jul 1993 | British | - |
| Nicholas Colin Mcnulty | Director | 13 Dec 2012 | 1 Sept 2013 | English | 46 years |
| Peter Geoffrey Beeson | Director | 7 Oct 2002 | 28 Nov 2007 | British | 69 years |
| Peter Geoffrey Beeson | Secretary | 7 Oct 2002 | 28 Nov 2007 | British | - |
| Peter Richard Harding | Director | 5 Jan 2004 | 28 Nov 2007 | British | 67 years |
| Robert Clive Carsley | Secretary | 1 Jul 1993 | 20 Oct 1995 | British | - |
| Steven Donald Skelton | Director | 7 Oct 2002 | 5 Jan 2004 | British | 73 years |
| Wendy Irene Hay | Director | 1 Sept 2013 | 1 Dec 2014 | British | 55 years |
| William Ronald Harper | Director | 1 Apr 1995 | 24 Mar 1997 | British | 82 years |