| Andrew Edward Rose | Director | 27 Apr 2006 | 8 May 2007 | British | 75 years |
| Andrew Hampden Hobart | Director | 9 Feb 2011 | 14 May 2012 | British | 64 years |
| Andrew Martin Pollins | Director | 1 Apr 2020 | 1 Feb 2023 | British | 59 years |
| Arthur Cameron Wylie | Secretary | 1 Oct 1998 | 27 Mar 2003 | British | - |
| Carl Anthony Wheldrake | Director | 30 Apr 1992 | 3 Apr 1995 | British | 88 years |
| Christopher Graham Wigg | Director | 28 Feb 2001 | 1 Jul 2004 | British | 75 years |
| Christopher John Hilary Dagger | Director | 5 Sept 1996 | 8 Oct 1998 | British | 77 years |
| Colin Kenneth Dawe | Director | 3 Apr 1995 | 30 Jun 1997 | British | 79 years |
| Cyril William Elliott | Director | 28 Jul 1997 | 30 Sept 1998 | British | 69 years |
| Cyril William Elliott | Secretary | 28 Jul 1997 | 30 Sept 1998 | British | - |
| David Anthony Sheridan | Director | 1 Jan 2018 | 30 Sept 2018 | British | 64 years |
| David Harry Sussams | Director | 23 May 1991 | 31 Mar 1994 | British | 73 years |
| David Harry Sussams | Secretary | 23 May 1991 | 31 Mar 1994 | British | - |
| David Mel Zuydam | Director | 14 Dec 1998 | 23 Mar 2001 | British | 65 years |
| Declan John Tierney | Secretary | 27 Apr 2006 | 9 Sept 2011 | British | - |
| Derek Sydney Gillingham | Director | 23 May 1991 | 30 Apr 1992 | British | 96 years |
| Edward Burn | Director | 31 Mar 1994 | 2 Jul 1996 | British | 73 years |
| Edward Burn | Secretary | 31 Mar 1994 | 2 Jul 1996 | British | - |
| Ian Clement Wright | Director | 23 May 1991 | 29 Aug 1997 | British | 91 years |
| John Michael Jago | Director | 1 Oct 2018 | 30 Jun 2021 | British | 58 years |
| John Stanley Marlor | Director | 30 Jun 2004 | 8 Jun 2009 | British | 77 years |
| Kevin David Craven | Director | 18 Dec 2006 | 12 Dec 2013 | British | 65 years |
| Lynn Gladwell | Secretary | 27 Mar 2003 | 27 Apr 2006 | British | - |
| Melanie Allan | Secretary | 13 Jan 2012 | 12 Dec 2013 | - | - |
| Michael Fellowes | Director | 2 Aug 1999 | 27 Apr 2006 | British | 68 years |
| Michael John Colin Milton | Secretary | 16 Jun 1997 | 28 Jul 1997 | British | - |
| Michael William Welton | Director | 3 Apr 1995 | 31 Dec 1999 | British | 80 years |
| Nicholas James Wargent | Secretary | 1 Aug 2011 | 13 Jan 2012 | - | - |
| Nicola Elizabeth Anne Lovett | Director | 1 Jan 2016 | 30 Sept 2021 | British | 57 years |
| Patrick Christopher Connolly | Director | 23 May 1991 | 31 Dec 1991 | British | 85 years |
| Paul Edwin Rawson | Director | 14 Mar 2016 | 9 Jan 2018 | British | 51 years |
| Paul John Lester | Director | 8 Oct 1998 | 28 Jun 2002 | British | 77 years |
| Richard John Blumberger | Director | 15 Jan 2009 | 31 Jan 2016 | British | 51 years |
| Robert Sharp | Director | 23 May 1991 | 13 Oct 1995 | British | 82 years |
| Rosanna Longobardi | Director | 14 Mar 2022 | 1 Feb 2023 | British | 55 years |
| Samuel Hockman | Director | 24 Jun 2019 | 28 Feb 2022 | British | 44 years |
| Sarah Gregory | Secretary | 1 May 2015 | 15 Jul 2022 | - | - |
| Sarah Jane Gregory | Director | 31 Jan 2022 | 4 Feb 2022 | British | 61 years |
| Simon David Pinnell | Director | 1 Jan 2016 | 31 Mar 2020 | British | 62 years |
| Simone Tudor | Secretary | 12 Dec 2013 | 5 Jan 2015 | - | - |
| Steven Alexander Waterhouse | Secretary | 1 Aug 1996 | 16 Jun 1997 | British | - |
| Terry Colin Woodhouse | Director | 14 May 2012 | 19 Aug 2014 | British | 62 years |
| Wilfrid John Petrie | Director | 12 Dec 2013 | 1 May 2019 | French | 61 years |