| Adam Paul Rutherford | Secretary | 8 Mar 1999 | 14 Jan 2000 | British | - |
| Alan Christopher Wren | Director | 9 May 1992 | 21 Nov 1992 | British | 78 years |
| Andrew Tamlyn | Director | 24 Jun 1998 | 30 Jun 1999 | British | 68 years |
| Angela Sigley | Secretary | 14 Jan 2000 | 20 Mar 2000 | British | - |
| David William Dibben | Director | 7 Feb 2003 | 31 Oct 2004 | British | 66 years |
| Fiona Jane Molloy | Secretary | 16 Aug 2002 | 13 Jan 2006 | British | - |
| Graham Williamson Macdowall | Director | 7 Feb 2003 | 4 Jan 2019 | British | 63 years |
| Hugh Royston Jenkins | Director | 20 Nov 1992 | 31 Dec 1995 | British | 93 years |
| John Kenneth Elbourne | Director | 27 Mar 1997 | 24 Jun 1998 | British | 82 years |
| John Richard Talbot | Director | 25 Jun 2009 | 30 Jun 2013 | British | 75 years |
| Jonathan Peter Mcclelland | Secretary | 26 Feb 2001 | 16 Aug 2002 | British | - |
| Keith Leonard Bedell Pearce | Director | 9 May 1992 | 6 Apr 1997 | British | 80 years |
| Kerryn Lynn Macdonald | Secretary | 30 Apr 2004 | 9 Mar 2005 | British | - |
| Leeroy Robert Tustain | Director | 13 Feb 2019 | 26 Jun 2019 | British | 56 years |
| Maria Luisa Cassoni | Director | 3 Jan 1996 | 6 May 1998 | British | 75 years |
| Nigel Stephen Boyling | Director | 30 Jun 1999 | 31 Oct 2008 | British | 70 years |
| Robert Charles Trant Higginbotham | Director | 24 Jun 1998 | 30 Jun 1999 | British | 59 years |
| Robert Walker | Secretary | 9 May 1992 | 8 Mar 1999 | British | - |
| Sean Andrew Fitzgerald | Director | 13 Sept 2019 | 14 Jan 2021 | British | 61 years |
| Stephen James Cook | Director | 24 Jun 1998 | 30 Jul 1999 | British | 75 years |
| Susan Doreen Windridge | Secretary | 20 Mar 2000 | 26 Feb 2001 | British | - |