| Andreas Frederick Evans | Director | 27 Aug 1991 | 31 Mar 2016 | British | 63 years |
| David Alistair Helliwell | Director | 9 Aug 1994 | 14 Oct 2009 | British | 78 years |
| David Geoffrey Maurice Cull | Director | 1 Oct 1998 | 30 Sept 2000 | British | 79 years |
| Dominic Redvers Evans | Director | 27 Aug 1991 | 25 Feb 2005 | British | 61 years |
| Ernest Leonard Curtis | Director | 27 Aug 1991 | 31 May 1996 | British | 100 years |
| Ernest Leonard Curtis | Secretary | 27 Aug 1991 | 31 May 1996 | British | - |
| Frederick Redvers Evans | Director | 27 Aug 1991 | 30 Nov 1992 | British | 27 years |
| Geoffrey Mortimer Goodwill | Director | 24 Mar 1997 | 19 May 2005 | British | 82 years |
| George Laidler Best | Director | 27 Aug 1991 | 29 Oct 1994 | British | 99 years |
| John Drummond Bell | Director | 31 Oct 1994 | 25 Aug 1999 | British | 77 years |
| Nicholas Jay Gilbert | Secretary | 12 Dec 2003 | 6 Aug 2004 | British | - |
| Paul Terence Millington | Director | 2 Oct 2000 | 1 Jul 2019 | British | 64 years |
| Paul Terence Millington | Secretary | 2 Jun 1998 | 12 Dec 2003 | British | - |
| Pauline Elizabeth Horsbrough | Director | 27 Aug 1991 | 20 Nov 2007 | British | 87 years |
| Philip Arthur Turner | Director | 1 Oct 1999 | 31 Oct 2008 | British | 74 years |
| Robert Marshall | Secretary | 31 Dec 2011 | 31 Mar 2022 | - | - |
| Roderick Michael Evans | Director | 27 Aug 1991 | 2 Oct 2023 | British | 64 years |
| Stuart Jobbins | Secretary | 6 Aug 2004 | 31 Dec 2011 | British | - |
| Trevor Lawton Parrish | Director | 27 Aug 1991 | 31 Aug 1997 | British | 94 years |
| William Mcaulay Gibson | Director | 19 Nov 1992 | 2 Jun 1998 | British | 85 years |
| William Mcaulay Gibson | Secretary | 27 Aug 1991 | 2 Jun 1998 | British | - |