| Alan Christopher Burton | Director | 30 Oct 1998 | 15 Nov 2003 | British | 83 years |
| Alan Stephen Acheson | Director | 19 Apr 2007 | 8 Dec 2019 | British | 66 years |
| Alexander Maxwell Crombie | Director | 30 Oct 1998 | 28 Jan 2004 | British | 77 years |
| Alexander Scott Bell | Director | 24 Apr 1990 | 23 Aug 1994 | British | 85 years |
| Alexander Scott Bell | Director | 26 May 1998 | 30 Oct 1998 | British | 85 years |
| Allison Donaldson | Director | 9 Dec 2019 | 23 Jun 2021 | British | 56 years |
| Archibald James Angus Macuish Gray | Secretary | 24 Apr 1990 | 14 Nov 1993 | British | - |
| Barry O'dwyer | Director | 19 Apr 2007 | 3 Aug 2007 | Irish | 55 years |
| Colin Alexander Crole | Director | 24 Apr 1990 | 23 Aug 1994 | British | 98 years |
| David Drysdale Fotheringham | Secretary | 15 Nov 1993 | 1 Mar 1996 | British | - |
| David John Burns | Secretary | 1 Aug 2010 | 30 Sept 2011 | - | - |
| Denise Elisabeth Thomas | Director | 17 Jan 2012 | 8 Dec 2019 | British | 55 years |
| Desmond Gerard Doran | Director | 8 Feb 2012 | 16 Jun 2013 | Irish | 73 years |
| Feilim Mackle | Director | 5 Jul 2000 | 17 Oct 2003 | Irish | 59 years |
| Gary Robert Marshall | Director | 9 Dec 2019 | 31 May 2021 | British | 65 years |
| Geoffrey Arthur Ball | Director | 23 Aug 1994 | 28 Apr 1998 | British | 83 years |
| Gordon David Arthur | Director | 30 Oct 1998 | 28 Apr 2003 | British | 63 years |
| Graham Storrie | Director | 5 Mar 1999 | 15 Dec 2001 | British | 66 years |
| Grenville John Folwell | Director | 24 Apr 1990 | 22 Aug 1994 | British | 83 years |
| Harry Simson Nimmo | Director | 21 Jun 2007 | 8 Feb 2012 | British | 69 years |
| Holly Sylvia Kidd | Secretary | 26 May 2015 | 23 Jun 2021 | - | - |
| Iain Cobden Lumsden | Director | 24 Apr 1990 | 30 Oct 1998 | British | 80 years |
| Jacqueline Lowe | Director | 11 Oct 2004 | 5 Nov 2018 | British | 60 years |
| James Bain Simpson | Director | 24 Apr 1990 | 23 Aug 1994 | British | 84 years |
| James Baird Aird | Director | 16 Nov 2003 | 5 Mar 2007 | British | 66 years |
| James Drake Birrell | Director | 24 Apr 1990 | 16 Jun 1993 | British | 93 years |
| James Stretton | Director | 24 Apr 1990 | 30 Oct 1998 | British | 83 years |
| Jeffrey Michael Blackburn | Director | 16 Jun 1993 | 22 Aug 1994 | British | 85 years |
| John Francis Henry Trott | Director | 23 Aug 1994 | 28 Apr 1998 | British | 88 years |
| Lynn Scott | Director | 28 Aug 2013 | 8 Dec 2019 | British | 53 years |
| Mark Connolly | Director | 21 Oct 2005 | 15 Mar 2009 | British | 67 years |
| Mark Ralph Cornwall Jones | Director | 24 Apr 1990 | 22 Aug 1994 | British | 93 years |
| Michael Fearnsides | Director | 24 Apr 1990 | 30 Jun 1994 | British | 90 years |
| Norman Keith Skeoch | Director | 28 Jan 2004 | 8 Feb 2012 | British | 70 years |
| Paul Michael Pasquill | Director | 1 Feb 2001 | 15 Nov 2003 | British | 71 years |
| Peter Anthony Stubbs | Secretary | 30 Oct 1998 | 15 Oct 2003 | British | - |
| Peter John Roney | Director | 24 Apr 1990 | 22 Aug 1994 | British | 77 years |
| Peter Walter Somerville | Secretary | 1 Mar 1996 | 30 Oct 1998 | British | - |
| Philip Barker | Director | 13 Oct 1999 | 15 Nov 2003 | British | 71 years |
| Robert John Mckillop | Director | 20 Feb 2012 | 2 Mar 2017 | British | 59 years |
| Scott Crewes | Secretary | 30 Sept 2011 | 26 May 2015 | - | - |
| Sean Andrew Fitzgerald | Director | 8 Feb 2012 | 28 Oct 2018 | British | 61 years |
| Simon David George Douglas | Director | 28 Jan 2002 | 27 Apr 2006 | British | 61 years |
| Stephen Campbell | Director | 29 Mar 2017 | 20 Jun 2019 | British | 56 years |
| Stephen Charles Hennings | Director | 11 Oct 2004 | 16 Jun 2005 | British | 61 years |
| Stuart Russell Wemyss | Director | 8 Feb 2012 | 8 Dec 2019 | British | 49 years |
| Vincent Joseph O'brien | Secretary | 16 Oct 2003 | 1 Aug 2010 | British | - |
| Wesley Thomas Mccoy | Director | 21 Jun 2007 | 25 Apr 2008 | British | 48 years |
| William Anthony Beadle | Director | 1 Sept 1990 | 30 Nov 1990 | British | 77 years |
| William Regnar Littleboy | Director | 2 Apr 2004 | 8 Feb 2012 | British | 65 years |