| Andrew Michael David Kirkman | Director | 1 Apr 2011 | 18 Sept 2015 | British | 54 years |
| Arthur Richardson | Director | 30 Nov 1991 | 28 Feb 1997 | British | 89 years |
| Barrie Sidney Hurley | Director | 1 Nov 2006 | 31 Dec 2011 | British | 75 years |
| Christopher Paul Leigh | Director | 1 Aug 1998 | 16 May 2000 | British | 58 years |
| Christopher Paul Richards | Secretary | 5 Apr 2007 | 5 May 2008 | British | - |
| David Balfour Robertson | Director | 1 Nov 2006 | 31 Mar 2011 | British | 72 years |
| David Keith Richardson | Director | 24 Apr 1992 | 30 Dec 2005 | British | 60 years |
| Elliot Arthur James Rees | Director | 31 Jul 2015 | 12 Oct 2020 | British | 52 years |
| Graham Henry Warren | Director | 8 Apr 2002 | 31 Oct 2006 | British | 75 years |
| John Richard Cardwell | Director | 8 Apr 2002 | 28 Jan 2011 | British | 82 years |
| Karen Senior | Secretary | 1 Nov 2014 | 8 Jul 2020 | - | - |
| Margaret Lilian Heeley | Secretary | 8 Apr 2002 | 5 Apr 2007 | British | - |
| Margaret Lilian Heeley | Secretary | 5 May 2008 | 28 Jul 2014 | British | - |
| Margaret May Richardson | Director | 30 Nov 1991 | 28 Feb 1997 | British | 89 years |
| Margaret May Richardson | Secretary | 30 Nov 1991 | 28 Feb 1997 | British | - |
| Mark Burrows Smith | Director | 1 Oct 2012 | 30 Jun 2015 | British | 59 years |
| Michael Hellings | Director | 1 Nov 2006 | 30 Sept 2012 | British | 75 years |
| Patrick James Capper | Director | 8 Apr 2002 | 31 Jan 2003 | British | 63 years |
| Philip Stuart Richardson | Director | 24 Apr 1992 | 31 Jan 2003 | British | 57 years |
| Philip Stuart Richardson | Secretary | 28 Feb 1997 | 8 Apr 2002 | British | - |
| Phillip Charles Piddington | Director | 31 Jul 2015 | 12 Oct 2020 | British | 70 years |
| Richard Cyril Zmuda | Secretary | 28 Jul 2014 | 30 Nov 2016 | British | - |
| Scott Edward Massie | Secretary | 1 Jan 2019 | 8 Jul 2020 | - | - |