| Andrew Michael David Kirkman | Director | 1 Apr 2011 | 18 Sept 2015 | British | 54 years |
| Christopher Paul Richards | Secretary | 5 Apr 2007 | 5 May 2008 | British | - |
| David Balfour Robertson | Director | 1 Oct 2002 | 31 Mar 2011 | British | 72 years |
| Elizabeth Anne Adams | Director | 10 Jan 1992 | 12 Dec 1997 | British | 86 years |
| Elliot Arthur James Rees | Director | 31 Jul 2015 | 12 Oct 2020 | British | 52 years |
| Karen Senior | Secretary | 1 Nov 2014 | 8 Jul 2020 | - | - |
| Kenneth Roy Ham | Secretary | 29 Jun 1993 | 12 Dec 1997 | British | - |
| Margaret Lilian Heeley | Secretary | 2 Mar 2002 | 5 Apr 2007 | British | - |
| Margaret Lilian Heeley | Secretary | 5 May 2008 | 28 Jul 2014 | British | - |
| Mark Burrows Smith | Director | 1 Oct 2012 | 30 Jun 2015 | British | 59 years |
| Michael Hellings | Director | 12 Dec 1997 | 30 Sept 2012 | British | 75 years |
| Phillip Charles Piddington | Director | 31 Jul 2015 | 12 Oct 2020 | British | 70 years |
| Richard Cyril Zmuda | Secretary | 28 Jul 2014 | 30 Nov 2016 | British | - |
| Robert Colin Milligan | Secretary | 12 Dec 1997 | 28 Feb 1998 | British | - |
| Robert James Woodland | Director | 12 Dec 1997 | 30 Sept 2002 | British | 81 years |
| Scott Edward Massie | Secretary | 1 Jan 2019 | 8 Jul 2020 | - | - |
| Stephen John Caddy | Secretary | 1 Mar 1998 | 1 Mar 2002 | British | - |
| Terence Charles Adams | Director | 10 Jan 1992 | 12 Dec 1997 | British | 87 years |
| Terence Charles Adams | Secretary | 10 Jan 1992 | 29 Jun 1993 | British | - |