| Andrew Michael David Kirkman | Director | 1 Apr 2011 | 18 Sept 2015 | British | 54 years |
| Brian Smith Blelloch | Director | 1 Apr 2001 | 31 Jan 2003 | British | 72 years |
| Brian Smith Blelloch | Secretary | 1 Apr 2001 | 24 Oct 2002 | British | - |
| Christopher Paul Richards | Secretary | 5 Apr 2007 | 5 May 2008 | British | - |
| David Balfour Robertson | Director | 8 Mar 2005 | 31 Mar 2011 | British | 72 years |
| David George Mewis | Secretary | 31 Jul 1997 | 1 Apr 2001 | British | - |
| Edward William Fitzalan Howard | Director | 1 Dec 1999 | 26 Jul 2002 | British | 70 years |
| Elliot Arthur James Rees | Director | 31 Jul 2015 | 12 Oct 2020 | British | 52 years |
| Jack Phillips | Director | 3 May 1991 | 31 Jul 1997 | British | 105 years |
| Jack Phillips | Secretary | 3 May 1991 | 31 Jul 1997 | British | - |
| John Andrew Phillips | Director | 14 Feb 1993 | 31 Jul 1997 | British | 76 years |
| John Richard Cardwell | Director | 24 Oct 2002 | 7 Mar 2005 | British | 82 years |
| Karen Senior | Secretary | 1 Nov 2014 | 8 Jul 2020 | - | - |
| Margaret Lilian Heeley | Secretary | 24 Oct 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 |
| Mary Nolan Phillips | Director | 3 May 1991 | 13 Nov 1992 | British | 105 years |
| Michael Hellings | Director | 24 Oct 2002 | 30 Sept 2012 | British | 75 years |
| Nicholas Robert Bown Robinson | Director | 31 Jul 1997 | 31 Jan 2003 | British | 79 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 | - |
| Rodney Peter Brennan | Director | 1 Jul 1998 | 31 Jan 2003 | British | 80 years |
| Ryszard Pawlak | Director | 1 Jul 1998 | 31 Jan 2003 | British | 76 years |
| Scott Edward Massie | Secretary | 22 Nov 2018 | 8 Jul 2020 | - | - |
| Thomas Adrian Franklin | Director | 1 Jan 2002 | 31 Jan 2003 | British | 73 years |