| Alan Thomas Curran | Director | 14 Apr 2009 | 30 Sept 2011 | British | 66 years |
| Allister Gordon Langlands | Director | 19 Mar 1992 | 28 Nov 2003 | British | 68 years |
| Andrew Charles Webster | Director | 6 Nov 2020 | 8 Feb 2023 | British | 45 years |
| Anthony Maplesden | Director | 1 Feb 2012 | 1 May 2015 | British | 73 years |
| Brian Anthony Stalker | Director | 27 Jul 1989 | 6 Aug 1989 | British | 82 years |
| Brian Clarke Nixon | Director | 1 Aug 1997 | 31 Aug 2001 | British | 78 years |
| Bruce Middleton | Director | 1 Feb 2009 | 8 Feb 2012 | British | 57 years |
| Charles Nicholas Brown | Director | 1 Mar 1998 | 31 Dec 2013 | British | 79 years |
| Charles Nicholas Brown | Secretary | 27 Jul 1989 | 23 Mar 1998 | British | - |
| Christopher Edward Milne Watson | Secretary | 1 Oct 1999 | 24 Nov 2003 | British | - |
| Christopher John Field | Director | 15 Jan 1998 | 1 Feb 2009 | British | 78 years |
| Craig Shanaghey | Director | 26 Jan 2021 | 8 Feb 2023 | British | 55 years |
| David Archibald Macfarlane | Director | 5 Jan 1994 | 31 Dec 1995 | British | 69 years |
| David Arthur Stewart | Director | 1 Feb 2012 | 1 Oct 2021 | British | 70 years |
| David Buchan | Director | 1 Feb 2012 | 26 Jan 2021 | British | 66 years |
| Derek Randall | Director | 2 Apr 1991 | 31 Jan 1996 | British | 85 years |
| Derek Stuart Blackwood | Director | 15 Jul 1996 | 28 Nov 2003 | British | 72 years |
| Derek Stuart Blackwood | Director | 28 Nov 2003 | 1 Feb 2009 | British | 72 years |
| Edwin Charles Garrett | Director | 27 Jul 1989 | 6 Aug 1989 | British | 94 years |
| Frederick John Chadwick | Director | 7 Nov 1994 | 31 Mar 1997 | British | 73 years |
| George Alexander Brown | Director | 1 Oct 2005 | 14 Apr 2009 | British | 76 years |
| Gerard Hugh Ward | Director | 1 Feb 2009 | 30 Apr 2011 | British | 73 years |
| Gordon William Smith | Director | 27 Jul 1989 | 6 Aug 1989 | British | 87 years |
| Gordon William Smith | Director | 2 Apr 1991 | 21 Apr 1998 | British | 87 years |
| Graham Good | Secretary | 23 Mar 1998 | 1 Oct 1999 | British | - |
| Iain Angus Jones | Secretary | 18 Dec 2015 | 12 Jun 2024 | - | - |
| Ian Clark Wood | Director | 27 Jul 1989 | 17 Jul 2008 | British | 84 years |
| Ian Gordon Stirling | Director | 12 Jan 1998 | 1 Feb 2009 | British | 69 years |
| Ian Johnson | Secretary | 24 Nov 2003 | 1 Sept 2010 | British | - |
| Ian Millar Bill | Director | 30 Jun 1996 | 20 May 1998 | British | 82 years |
| James Walter Andrew Ewen | Director | 1 Feb 2009 | 27 Jan 2012 | British | 68 years |
| John Joseph Rogers | Director | 1 Feb 2009 | 2 Jun 2010 | British | 68 years |
| John Stewart | Director | 31 Mar 1999 | 1 Oct 2005 | British | 77 years |
| Kenneth Allan Mccombie | Director | 21 Apr 1998 | 1 Feb 2012 | British | 60 years |
| Leslie James Thomas | Director | 19 May 2004 | 14 Apr 2009 | British | 69 years |
| Mitchell Scott Semple | Director | 6 Aug 1989 | 2 Aug 1991 | British | 83 years |
| Neil Harvie | Director | 14 Jan 1998 | 1 Feb 2012 | British | 67 years |
| Robert Muirhead Birnie Brown | Secretary | 1 Sept 2010 | 18 Dec 2015 | - | - |
| Robert Sommerville Drummond | Director | 1 Oct 1992 | 14 May 1996 | British | 71 years |
| Robin Watson | Director | 2 Jun 2010 | 7 Apr 2022 | British | 59 years |
| Stephen James Nicol | Director | 1 Feb 2012 | 6 Nov 2020 | British | 51 years |
| Stephen John Wayman | Director | 1 Jan 2000 | 1 Jul 2004 | British | 71 years |
| Stuart Hall | Director | 1 Oct 1992 | 19 Jun 1996 | British | 77 years |
| Thomas Motherwell | Director | 27 Jul 1989 | 1 Jun 2000 | British | 82 years |
| Timothy John Ingram | Director | 23 Aug 2010 | 30 Dec 2011 | British | 69 years |
| William Douglas Bertram | Director | 27 Jul 1989 | 6 Aug 1989 | British | 91 years |
| William Edgar | Director | 1 Sept 1995 | 19 May 2004 | British | 88 years |
| William Hadden Carr | Director | 27 Jul 1989 | 1 Sept 1995 | British | 93 years |