| Alan Jones | Director | 25 Sept 1992 | 26 Sept 1994 | British | 83 years |
| Barry Alexander Ralph Gerrard | Secretary | 1 Mar 2007 | 31 Mar 2020 | British | - |
| Bernard Charles Owens | Director | 1 Apr 1992 | 28 Apr 1993 | British | 98 years |
| Diana Patricia Legge | Director | 4 Nov 1998 | 10 Mar 2000 | British | 68 years |
| Diana Patricia Legge | Secretary | 22 May 1997 | 10 Mar 2000 | British | - |
| Eleena Joy Broadfoot | Director | 23 Jun 2006 | 26 Jul 2013 | British | 54 years |
| Gareth Owen Edwards | Director | 1 Apr 1992 | 26 Sept 1994 | British | 79 years |
| Gary James Powell | Director | 22 Oct 2003 | 23 Jun 2006 | British | 52 years |
| Geoffrey Wyn Williams | Director | 26 Sept 1994 | 22 May 1997 | British | 82 years |
| Graeme Stanley Harris | Director | 1 Apr 1992 | 25 Sept 1992 | British | 81 years |
| Gwynn Angell Jones | Director | 1 Apr 1992 | 27 Aug 1992 | Prydeinig | 79 years |
| Ian Murdoch | Director | 1 Apr 1992 | 23 Apr 1992 | British | 76 years |
| John Patrick Moorhead | Director | 23 Sept 2015 | 1 Jul 2016 | British | 51 years |
| Jonathan David Robert Brown | Director | 9 Sept 2002 | 23 Sept 2015 | British | 64 years |
| Joshua Bayliss | Secretary | 31 Aug 2006 | 1 Mar 2007 | British | - |
| Kenneth Peter Beynon | Director | 25 Sept 1992 | 26 Sept 1994 | British | 74 years |
| Paul James Twamley | Director | 26 Sept 1994 | 22 May 1997 | British | 80 years |
| Peter Gerardus Gram | Director | 10 Mar 2000 | 31 Aug 2001 | British | - |
| Peter Gerardus Gram | Secretary | 10 Mar 2000 | 31 Aug 2006 | British | - |
| Rhian Eirlys Avery | Director | 1 Apr 1992 | 25 Sept 1992 | British | 67 years |
| Richard Gregory Curtis | Secretary | 1 Apr 1992 | 22 May 1997 | British | - |
| Robert Keith Stokes | Director | 1 Apr 1992 | 25 Sept 1992 | British | 96 years |
| Stephen David Mitchell | Director | 4 Jul 2013 | 23 Sept 2015 | British | 71 years |
| Stephen Peter Wilton Clift | Director | 26 Mar 2007 | 2 May 2008 | British | 50 years |
| Stephen Thomas Matthew Murphy | Director | 22 May 1997 | 4 Nov 1998 | British | 70 years |
| Susannah Mary Louise Hall | Director | 9 Sept 2002 | 30 Jan 2006 | British | 61 years |
| William Michael Ferme Herriot | Director | 22 May 1997 | 9 Sept 2002 | British | 84 years |