| Alan Wallace Mckean | Secretary | 1 Mar 1990 | 17 Sept 1991 | British | - |
| Alan Wallace Mckean | Secretary | 15 Dec 1993 | 9 Aug 1994 | British | - |
| Alexander James Reid | Director | 29 Dec 1988 | 5 Mar 1991 | British | 90 years |
| Alfred Wilson Moon | Director | 17 Apr 1990 | 7 May 1991 | British | 90 years |
| Andrew James Timlin | Director | 19 Nov 2015 | 29 Jun 2016 | British | 48 years |
| Archibald Hugh Sinclair | Director | 1 Feb 1997 | 8 Jun 2001 | British | 76 years |
| Arthur Mcrae Cosgrove | Secretary | 27 Dec 1992 | 15 Dec 1993 | British | - |
| Bernard Higgins | Director | 29 Jun 2001 | 21 Apr 2004 | British | 65 years |
| Charles Allison Beattie | Director | 1 Feb 1997 | 1 Nov 2000 | British | 61 years |
| Charles Allison Beattie | Director | 29 Jun 2001 | 31 May 2007 | British | 61 years |
| Christina Ann Hankin | Secretary | 25 Oct 2005 | 19 Mar 2008 | British | - |
| Christine Mcpherson | Director | 12 Mar 2018 | 29 Mar 2021 | British | 51 years |
| Christopher George Pearson | Director | 30 Mar 1992 | 15 Dec 1993 | British | 79 years |
| Christopher John Leslie Stewart | Director | 21 Oct 2010 | 30 Nov 2011 | British | 54 years |
| Colin Angus Baillie | Director | 4 Jun 2007 | 4 Jun 2008 | British | 66 years |
| Deborah Susan Esslemont | Secretary | 9 Jan 2008 | 11 Mar 2010 | British | - |
| Dunlop James Stewart | Director | 31 Jul 2002 | 1 Apr 2004 | British | 81 years |
| Eric Galbraith | Director | 27 Jun 1995 | 6 Oct 2000 | British | 77 years |
| Feilim Mackle | Director | 8 Dec 2003 | 19 Dec 2006 | Irish | 58 years |
| Fiona Lesley Davis | Director | 12 Nov 2009 | 12 Aug 2010 | British | 64 years |
| Fiona Lesley Davis | Director | 19 Apr 2013 | 12 Jul 2013 | British | 64 years |
| Garry Morrison | Director | 7 Mar 2011 | 21 Jun 2012 | British | 64 years |
| Gary Alexander Sutherland | Director | 8 Oct 2013 | 13 Nov 2015 | British | 57 years |
| Graham Douglas Stewart | Director | 29 Jun 2001 | 22 Dec 2005 | British | 77 years |
| Graham Storrie | Director | 22 Feb 2010 | 31 Jan 2011 | British | 65 years |
| Henry Lockhart Keogh | Director | 22 Dec 2005 | 4 Nov 2009 | British | 65 years |
| Ian James Grant | Director | 4 Nov 2011 | 5 Oct 2012 | British | 62 years |
| Ian John Gilbert | Director | 4 Jun 2007 | 5 Jun 2010 | British | 68 years |
| Ian Michael Brian Mclaughlin | Director | 14 May 2012 | 3 Jun 2019 | British | 59 years |
| Ian Rea Cowan | Director | 29 Dec 1988 | 22 Mar 1991 | British | 93 years |
| Ian Reid | Director | 28 Apr 1993 | 29 Jun 2001 | British | 74 years |
| James Eugene Martin | Director | 22 Mar 1991 | 16 Jun 1995 | British | 84 years |
| James Henderson Smeal | Director | 28 Apr 1993 | 20 Oct 1993 | British | 79 years |
| James Michael Kelly | Director | 18 Nov 1994 | 11 Jul 1997 | British | 69 years |
| James Snodgrass Lindsay | Secretary | 29 Dec 1988 | 1 Mar 1990 | British | - |
| Jane Dickson | Secretary | 18 Sept 1991 | 27 Dec 1992 | British | - |
| John Donald Black Workman | Director | 14 Jul 1997 | 1 Nov 2000 | British | 73 years |
| Laura Yvonne Newman | Director | 30 Oct 2015 | 21 Oct 2019 | British | 57 years |
| Martin Francis Fleming | Director | 18 Apr 2012 | 22 Mar 2013 | Irish | 57 years |
| Neil Anthony Phelan | Director | 29 Dec 1988 | 28 Feb 1994 | British | 85 years |
| Norman Paterson | Director | 29 Dec 1988 | 27 Dec 1992 | British | 93 years |
| Peter Anthony Morgan | Director | 1 Feb 1997 | 29 Jun 2001 | British | 71 years |
| Peter John Wood | Director | 5 Mar 1991 | 27 Dec 1992 | British | 79 years |
| Robert Macdonald Mcinnes | Director | 15 Dec 1993 | 18 Nov 1994 | British | 85 years |
| Sarah Jane Deaves | Director | 4 Nov 2009 | 1 May 2012 | British | 64 years |
| Shirley Margaret Macgillivray | Secretary | 9 Aug 1994 | 25 Oct 2005 | British | - |
| Simon Alistair Funge | Director | 19 Mar 2007 | 19 May 2011 | British | 63 years |
| Simon James Uings | Director | 26 May 2015 | 18 Mar 2022 | British | 68 years |
| Timothy Charles Stalkartt | Director | 1 Feb 1997 | 2 Jul 2001 | British | 63 years |
| William Ian Taylor | Director | 29 Dec 1988 | 17 Apr 1990 | British | 95 years |
| Yvonne Addison | Secretary | 11 Mar 2010 | 8 Dec 2014 | - | - |