| Alan George Semple | Director | 1 Aug 2000 | 30 Apr 2015 | British | 67 years |
| Allister Gordon Langlands | Director | 2 Apr 1999 | 1 Nov 2012 | British | 68 years |
| Carl Anthony Chatfield | Director | 18 Dec 2015 | 10 Dec 2019 | British | 62 years |
| Charles Nicholas Brown | Nominee Secretary | 3 Sept 1997 | 23 Mar 1998 | British | - |
| Christopher Edward Milne Watson | Director | 1 Oct 1999 | 21 Mar 2005 | British | 59 years |
| Christopher Edward Milne Watson | Secretary | 1 Oct 1999 | 24 Nov 2003 | British | - |
| Edwin Charles Garrett | Director | 31 Dec 2000 | 19 Oct 2008 | British | 94 years |
| George Graeme Park | Director | 21 Mar 2005 | 22 Nov 2006 | British | 57 years |
| Graham Good | Director | 2 Apr 1999 | 1 Oct 1999 | British | 77 years |
| Graham Good | Secretary | 23 Mar 1998 | 1 Oct 1999 | British | - |
| Hugh Fraser | Nominee Director | 3 Sept 1997 | 2 Apr 1999 | British | 63 years |
| Ian Clark Wood | Director | 1 Oct 1999 | 31 Oct 2012 | British | 84 years |
| Ian Johnson | Secretary | 24 Nov 2003 | 1 Sept 2010 | British | - |
| Leslie James Thomas | Director | 19 May 2004 | 30 Jun 2012 | British | 69 years |
| Michael Dear | Director | 22 Nov 2006 | 16 Nov 2009 | British | 55 years |
| Michael Straughen | Director | 1 May 2007 | 31 Aug 2014 | British | 76 years |
| Robert Muirhead Birnie Brown | Director | 1 Sept 2010 | 1 Sept 2010 | British | 56 years |
| Robert Muirhead Birnie Brown | Director | 1 Nov 2012 | 18 Dec 2015 | British | 56 years |
| Robert Muirhead Birnie Brown | Secretary | 1 Sept 2010 | 18 Dec 2015 | - | - |
| Thomas Motherwell | Director | 1 Oct 1999 | 1 Jun 2000 | British | 82 years |
| Trevor Mills Noble | Director | 19 May 2004 | 30 Apr 2007 | British | 80 years |
| William Edgar | Director | 1 Oct 1999 | 19 May 2004 | British | 88 years |