| Alan Tony Eckford | Director | 29 May 2001 | 26 Sept 2003 | British | 78 years |
| Alastair Douglas Mcdougall | Director | 25 Jun 1990 | 11 Jul 1996 | British | 82 years |
| Alexander Ferrier Sharp Morrison | Director | 25 Jun 1990 | 12 Jun 1995 | British | 107 years |
| Alexander Fraser Morrison | Director | 25 Jun 1990 | 31 Jan 2001 | British | 78 years |
| Alexander Macdonald Hamilton | Director | 12 Apr 1995 | 22 Jul 1999 | British | 101 years |
| Anne Victoria Mary Warrack | Director | 29 Jul 2007 | 8 Dec 2008 | British | 71 years |
| Charles Baird Morrison | Director | 15 Aug 2002 | 31 Aug 2005 | British | 75 years |
| Charles Russell Sanderson | Director | 12 Apr 1995 | 31 Jan 2001 | British | 93 years |
| Claire Tytherleigh Russell | Director | 3 May 2008 | 30 Sept 2025 | British | 62 years |
| David Charles Turner | Secretary | 19 Aug 2002 | 24 Feb 2006 | Other | - |
| Derek Kerr Walmsley | Director | 8 Dec 2008 | 28 Feb 2010 | British | 79 years |
| Elizabeth Ann Horlock Clarke | Secretary | 1 Apr 2015 | 4 Mar 2021 | - | - |
| Elliott Michael Mannis | Director | 2 Nov 2000 | 5 Dec 2002 | British | 65 years |
| Geoffrey Arthur George Shepheard | Secretary | 23 Aug 2004 | 31 Mar 2015 | British | - |
| Gordon Morrison | Director | 25 Jun 1990 | 29 May 2001 | British | 75 years |
| Iain Alasdair Robertson | Director | 10 Sept 2001 | 27 Mar 2002 | British | 77 years |
| Jacqueline Elizabeth Fox | Secretary | 31 Jan 2001 | 17 May 2002 | British | - |
| James Roderick Benzie Peacock | Director | 10 Jan 2000 | 31 Jan 2001 | British | 78 years |
| John Morrison | Secretary | 1 Apr 1994 | 14 Jun 2001 | British | - |
| Jonathan David Forster | Director | 1 Jun 2012 | 30 Apr 2025 | British | 59 years |
| Joseph Michael Martin | Director | 25 Nov 1998 | 31 Jan 2001 | British | 74 years |
| Keith Martin Howell | Director | 7 Mar 1991 | 3 Feb 2000 | British | 70 years |
| Keith Martin Howell | Secretary | 7 Mar 1991 | 1 Apr 1994 | British | - |
| Mark Stephen Anderson | Director | 23 Feb 2010 | 31 May 2012 | British | 61 years |
| Michael David Hampson | Director | 31 Aug 2005 | 31 Jul 2008 | British | 68 years |
| Norman Angus Maclennan | Director | 25 Jun 1990 | 30 Jan 1998 | British | 75 years |
| Norman Angus Maclennan | Secretary | 25 Jun 1990 | 7 Mar 1991 | British | - |
| Patrick Firth | Director | 27 Nov 2003 | 3 May 2008 | British | 71 years |
| Robert David Green | Director | 23 Aug 1999 | 23 Oct 2000 | British | 71 years |
| Roger Archibald Croson | Director | 25 Jun 1990 | 23 Jul 1998 | British | 84 years |
| Roy Alan Pointer | Director | 29 May 2001 | 1 Feb 2002 | British | 81 years |
| Seamus Joseph Gillen | Director | 2 Nov 2000 | 31 Jan 2001 | British | 67 years |
| Seamus Joseph Gillen | Secretary | 17 May 2002 | 19 Aug 2002 | British | - |
| Stephen John Mcbrierty | Director | 9 Sept 1997 | 14 Nov 2000 | British | 65 years |
| William Nelson Robertson | Director | 12 Apr 1995 | 31 Jan 2001 | British | 93 years |