| Aileen Norma Taylor | Director | 1 Aug 2007 | 17 Sept 2010 | British | 53 years |
| Alan Ewing Mills | Director | 31 Dec 2005 | 11 Dec 2012 | British | 68 years |
| Alan Ewing Mills | Secretary | 26 Jul 1994 | 13 Mar 1998 | British | - |
| Alan Wallace Mckean | Director | 26 Jul 1994 | 5 Sept 1994 | British | 71 years |
| Alan Wallace Mckean | Director | 31 Dec 2005 | 20 Jun 2008 | British | 71 years |
| Andrew James Nicholson | Director | 13 Sept 2011 | 31 May 2018 | British | 51 years |
| Anthony Malcolm Cripps | Director | 19 Aug 1999 | 22 Apr 2002 | British | 68 years |
| Aylmer Edwin Millen | Director | 19 Aug 1999 | 2 Dec 2002 | British | 78 years |
| Barbara Charlotte Wallace | Director | 17 Sept 2010 | 13 Sept 2011 | British | 54 years |
| Christine Anne Russell | Secretary | 13 Sept 2011 | 27 Jul 2012 | - | - |
| David Edmund Cartledge | Director | 23 Aug 1994 | 19 Aug 1999 | British | 79 years |
| Deborah Susan Esslemont | Secretary | 19 Dec 2000 | 2 Aug 2006 | British | - |
| Derek Stephen Sach | Director | 23 Aug 1994 | 13 Mar 1997 | British | 77 years |
| Derek Stephen Sach | Director | 11 Dec 1998 | 19 Aug 1999 | British | 77 years |
| Elspeth Barbara Ann Miller | Director | 26 Jul 1994 | 5 Sept 1994 | British | 77 years |
| Eric George William Tough | Director | 26 Jul 1994 | 5 Sept 1994 | British | 68 years |
| Ernest Michael Sheavills | Director | 23 Aug 1994 | 31 Dec 2005 | British | 80 years |
| Gary Robert Mcneilly Stewart | Director | 17 Sept 2010 | 11 Dec 2012 | British | 59 years |
| Grahame Taylor Whitehead | Director | 23 Aug 1994 | 19 Aug 1999 | British | 75 years |
| Hew Campbell | Director | 19 Aug 1999 | 1 Aug 2007 | British | 63 years |
| Neil Clark Macarthur | Director | 20 Jun 2008 | 17 Sept 2010 | British | 58 years |
| Robert Henry Beattie | Director | 13 Sept 1994 | 19 Aug 1999 | British | 76 years |
| Robert Speirs | Director | 13 Mar 1997 | 23 Oct 1998 | British | 89 years |
| Sally Jane Sutherland | Director | 11 Dec 2012 | 20 Sept 2019 | British | 58 years |
| Shirley Margaret Macgillivray | Secretary | 13 Mar 1998 | 19 Dec 2000 | British | - |
| Simon Jonathan Chrispin | Director | 11 Dec 1998 | 19 Aug 1999 | British | 63 years |
| Walter Ainslie Skeldon | Director | 19 Aug 1999 | 22 Apr 2002 | British | 74 years |
| Yvonne Wood | Secretary | 2 Aug 2006 | 13 Sept 2011 | British | - |