| Anthony Paul Cooper | Director | 18 Apr 1992 | 30 Sept 2006 | British | 78 years |
| Edward James Boot | Director | 18 Apr 1992 | 28 Aug 1996 | British | 74 years |
| Edward James Boot | Director | 1 Jan 2016 | 1 Jul 2022 | British | 74 years |
| Eleanor Sian Siriol Christmas | Director | 18 Apr 1992 | 31 May 2013 | British | 70 years |
| Eleanor Sian Siriol Foster | Secretary | 18 Apr 1992 | 9 Dec 1996 | British | - |
| Gordon William Hawksley | Secretary | 9 Dec 1996 | 31 Jan 2012 | British | - |
| John Albert Bryan Redgrave | Director | 28 Aug 1996 | 19 May 2006 | British | 94 years |
| John Ernest Brown | Director | 19 May 2006 | 31 Dec 2015 | British | 81 years |
| John Trevor Sutcliffe | Secretary | 1 Feb 2012 | 31 May 2013 | - | - |
| John Trevor Sutcliffe | Director | 1 Oct 2006 | 31 May 2020 | British | 66 years |
| Russell Alan Deards | Director | 1 Jun 2013 | 18 Oct 2018 | British | 58 years |
| Russell Alan Deards | Secretary | 1 Jun 2013 | 18 Oct 2018 | - | - |