| Charles Ian Bateman | Director | 12 Jun 1992 | 28 May 1993 | British | 91 years |
| Christopher Laskey Fidler | Director | 31 Jul 2007 | 22 Jul 2016 | British | 71 years |
| Christopher Laskey Fidler | Secretary | 16 Jun 2009 | 31 Aug 2009 | British | - |
| Colin Fellowes | Secretary | 15 Sept 1995 | 16 Jun 2009 | British | - |
| David Robson | Director | 12 Jun 1992 | 31 Jul 2003 | British | 81 years |
| Grant Richmond Ling | Director | 31 Mar 2011 | 30 Nov 2017 | British | 70 years |
| Helen Morrell | Secretary | 4 Dec 2015 | 22 Feb 2017 | - | - |
| Iain Angus Jones | Secretary | 16 Feb 2018 | 12 Jun 2024 | - | - |
| Jennifer Ann Warburton | Director | 22 Jul 2016 | 16 Feb 2018 | British | 57 years |
| Jennifer Ann Warburton | Secretary | 22 Feb 2017 | 16 Feb 2018 | - | - |
| John Dalton Early | Director | 8 Jun 1991 | 31 Jul 2007 | British | 81 years |
| Kim Andrea Hand | Secretary | 31 Aug 2009 | 4 Dec 2015 | British | - |
| Leonard Peter Whitting | Director | 8 Jun 1991 | 31 Jul 1992 | British | 98 years |
| Mark James Watson | Director | 16 Feb 2018 | 31 Dec 2020 | British | 62 years |
| Michael Blacker | Director | 31 Aug 2009 | 31 Mar 2011 | British | 71 years |
| Michael John Bardsley | Director | 15 May 2000 | 5 Apr 2001 | British | 82 years |
| Michael John Bardsley | Secretary | 8 Jun 1991 | 15 Nov 1993 | British | - |
| Nathan William Blanksby | Director | 8 Jun 1991 | 28 Jan 1993 | British | 91 years |
| Nigel James Maxwell Davies | Secretary | 15 Nov 1993 | 15 Sept 1995 | British | - |
| Peter James Holland | Director | 5 Apr 2001 | 31 Aug 2009 | British | 79 years |
| William George Setter | Director | 30 Nov 2017 | 21 Mar 2025 | British | 51 years |
