| Benjamin Charles Sawford | Director | 2 Apr 2007 | 8 Jan 2009 | British | 54 years |
| Bryan Kieron Moore | Director | 17 Aug 1994 | 2 Apr 2007 | British | 67 years |
| Charles Frederick Crawte Pearson | Director | 21 Sept 1991 | 31 Dec 1996 | British | 81 years |
| Christopher Laskey Fidler | Director | 16 Sept 2013 | 22 Jul 2016 | British | 71 years |
| Christopher Laskey Fidler | Secretary | 16 Jun 2009 | 22 Jul 2016 | British | - |
| Colin Fellowes | Secretary | 2 Apr 2007 | 16 Jun 2009 | British | - |
| Colin Ross Fleming | Director | 29 May 2015 | 1 Oct 2017 | British | 67 years |
| Eileen Mary Mcgregor | Director | 21 Sept 1991 | 2 Apr 2007 | British | 77 years |
| Eileen Mary Mcgregor | Secretary | 21 Sept 1991 | 2 Apr 2007 | British | - |
| Helen Morrell | Secretary | 22 Jul 2016 | 22 Feb 2017 | - | - |
| Janice Gayle Baker | Director | 2 Apr 2007 | 13 Jul 2011 | American | 79 years |
| Jennifer Ann Warburton | Director | 22 Jul 2016 | 16 Feb 2018 | British | 57 years |
| Jennifer Ann Warburton | Secretary | 22 Feb 2017 | 16 Feb 2018 | - | - |
| Jeremy Baxter Leathers | Director | 21 Sept 1991 | 2 Apr 2007 | British | 80 years |
| John James Clarke | Director | 13 Jul 2011 | 1 Jan 2012 | British | 61 years |
| John Michael Wright | Director | 2 Apr 2007 | 8 Jan 2009 | British | 70 years |
| Mark Justin Williams | Director | 1 Jan 2012 | 29 May 2015 | British | 49 years |
| Philip Henry Bourne | Director | 13 Jul 2011 | 16 Sept 2013 | British | 59 years |
| Robert David Roberts | Director | 21 Sept 1991 | 7 May 2006 | British | 77 years |
| Robert Matthew Bell | Director | 2 Apr 2007 | 27 Mar 2011 | British | 73 years |
| Roger Frank Carrington | Director | 21 Sept 1991 | 29 Jun 1995 | British | 78 years |
| Steven Norman Young | Director | 21 Sept 1991 | 28 Feb 1998 | British | 70 years |
| Susan Ann Carrington | Director | 21 Sept 1991 | 2 Apr 2007 | British | 75 years |
| Susan Kaye Gregson | Director | 21 Sept 1991 | 13 Jul 2011 | British | 71 years |