| Alan Ormand Smith | Director | 1 Nov 1998 | 14 Jan 2000 | British | 80 years |
| Alan Ormand Smith | Director | 27 Jan 2000 | 31 Dec 2002 | British | 80 years |
| Alan Ormond Smith | Director | 26 Nov 1991 | 28 Feb 1994 | British | 80 years |
| Andrew Thomas Ogden | Director | 26 Nov 1991 | 14 Jan 2000 | British | 77 years |
| Andrew Thomas Ogden | Director | 27 Jan 2000 | 31 Dec 2002 | British | 77 years |
| Ann Elizabeth Rogers | Secretary | 1 Mar 1996 | 25 Feb 2000 | British | - |
| David Fred Fawcett | Director | 27 Jan 2000 | 31 Dec 2002 | British | 79 years |
| David Gerald Compston | Director | 26 Nov 1991 | 30 Oct 1998 | British | 88 years |
| Dieter Deffner | Director | 10 Jun 1992 | 26 Jul 1993 | German | 88 years |
| Dieter Deffner | Director | 26 Jul 1994 | 14 Jan 2000 | German | 88 years |
| Edward John Hill | Director | 26 Nov 1991 | 14 Jan 2000 | British | 76 years |
| Edward John Hill | Director | 27 Jan 2000 | 31 Dec 2002 | British | 76 years |
| Henry George Perfect | Director | 14 Jan 2000 | 31 Dec 2002 | British | 82 years |
| Jeffrey Chapman | Director | 15 Nov 1994 | 8 Oct 1999 | British | 77 years |
| John Herbert Mills | Director | 26 Nov 1991 | 28 Feb 1994 | British | 79 years |
| John Maxwell Roberts | Director | 26 Nov 1991 | 28 Feb 1994 | British | 78 years |
| John Maxwell Roberts | Director | 6 Mar 1996 | 6 Mar 1996 | British | 78 years |
| John Maxwell Roberts | Secretary | 26 Nov 1991 | 1 Mar 1996 | British | - |
| John Maxwell Roberts | Secretary | 25 Feb 2000 | 31 Dec 2002 | British | - |
| John Rudkin Dowell | Director | 26 Nov 1991 | 30 Apr 1992 | British | 95 years |
| Leon Anthony Power | Director | 12 Nov 2007 | 5 Dec 2016 | Irish | 68 years |
| Mark Cubitt | Director | 31 Dec 2002 | 31 Jan 2007 | British | 63 years |
| Michael Henry Joseph Sargent | Director | 26 Nov 1991 | 31 Oct 1996 | British | 91 years |
| Michael Udovic | Secretary | 13 Apr 2011 | 1 Sept 2015 | - | - |
| Peter Norman Hardy | Director | 26 Nov 1991 | 14 Jan 2000 | British | 83 years |
| Peter Norman Hardy | Director | 27 Jan 2000 | 27 Jan 2000 | British | 83 years |
| Robert Christopher Heath | Director | 1 Nov 1993 | 20 Oct 1995 | British | 77 years |
| Wilfred Shoreson | Director | 26 Nov 1991 | 26 Jul 1993 | British | 93 years |
| William Angus Wallace | Director | 31 Dec 2002 | 30 Jun 2005 | British | 77 years |
| William Clyde Markley | Secretary | 13 Dec 2005 | 13 Apr 2011 | American | - |
| William Gilchrist Mitchell | Director | 14 Jan 2000 | 22 Dec 2006 | British | 82 years |
| William Gilchrist Mitchell | Secretary | 31 Dec 2002 | 27 Sept 2005 | British | - |
| William James Paskins | Director | 26 Nov 1991 | 20 Oct 1995 | British | 77 years |
| William John Cameron Broadfoot | Director | 31 Jan 2007 | 25 Oct 2007 | British | 72 years |