| Albert Norman Dungate | Secretary | 18 Nov 2002 | 24 Jun 2016 | British | - |
| Allan Keppie Smith | Director | 11 Feb 1993 | 18 May 1997 | British | 94 years |
| Andrew Patrick Kennedy | Secretary | 11 Feb 1993 | 29 Aug 1996 | British | - |
| Barry Morse | Director | 11 Feb 1993 | 1 Jun 1995 | British | 76 years |
| Barry Turnbull | Director | 2 Mar 1994 | 1 Feb 2002 | British | 78 years |
| Erik Alexander Steven Porter | Director | 12 Jul 1992 | 30 Jul 1997 | British | 87 years |
| Franco Martinelli | Director | 18 Nov 2002 | 24 Jun 2016 | British | 66 years |
| Godfrey Oliver Whitehead | Director | 12 Jul 1992 | 11 Feb 1993 | British | 85 years |
| Gordon Arden Campbell | Director | 31 Dec 2000 | 6 Jun 2002 | British | 80 years |
| Gordon Arden Campbell | Director | 18 Nov 2002 | 16 Oct 2003 | British | 80 years |
| Iain Stuart Urquhart | Director | 17 Dec 2014 | 31 May 2022 | British | 61 years |
| John Allen | Secretary | 12 Jul 1992 | 11 Feb 1993 | British | - |
| Martyn Robert Frost | Director | 12 Jul 1992 | 11 Feb 1993 | British | 76 years |
| Nicholas James William Borrett | Secretary | 27 Jul 2012 | 25 Feb 2013 | - | - |
| Nicholas Robin Salmon | Director | 1 Nov 1993 | 31 May 1997 | British | 74 years |
| Nigel Robert Young | Director | 31 Jul 1997 | 30 Nov 2001 | British | 73 years |
| Peter Lloyd Rogers | Director | 16 Sept 2003 | 24 Jun 2016 | British | 79 years |
| Robert James Wetherall | Director | 12 Jul 1992 | 11 Feb 1993 | British | 83 years |
| Robert Scott Martin | Secretary | 29 Aug 1996 | 21 Apr 2004 | British | - |
| Shaun Doherty | Director | 31 May 2022 | 30 Sept 2024 | British | 58 years |
| Stanley Alan Royall Billiald | Secretary | 19 Nov 2002 | 1 Jul 2009 | Other | - |
| Thomas John Parker | Director | 1 Nov 1993 | 31 Dec 2000 | British | 84 years |
| Valerie Francine Anne Teller | Secretary | 1 Jul 2009 | 27 Jul 2012 | British | - |
| William Alan Cramond | Director | 30 Mar 2000 | 5 Dec 2002 | British | 70 years |
| William Tame | Director | 22 Jan 2002 | 6 Jun 2002 | British | 72 years |
| William Tame | Director | 18 Nov 2002 | 17 Dec 2014 | British | 72 years |