| Ailish Martina Christian-west | Director | 20 Mar 2015 | 4 Nov 2016 | Irish | 49 years |
| Alan Matthew Syers | Director | 10 Aug 1999 | 8 Nov 2007 | British | 61 years |
| Alan Matthew Syers | Director | 20 Nov 2013 | 4 Nov 2016 | British | 61 years |
| Andreas Frederick Evans | Director | 27 Aug 1991 | 28 Sept 2007 | British | 62 years |
| David Alistair Helliwell | Director | 9 Aug 1994 | 30 Apr 2010 | British | 77 years |
| David Geoffrey Maurice Cull | Director | 1 Oct 1998 | 30 Sept 2000 | British | 78 years |
| Dominic Redvers Evans | Director | 21 Jun 1993 | 25 Feb 2005 | British | 60 years |
| Ernest Leonard Curtis | Director | 27 Aug 1991 | 31 May 1996 | British | 99 years |
| Ernest Leonard Curtis | Secretary | 27 Aug 1991 | 31 May 1996 | British | - |
| Frederick Redvers Evans | Director | 27 Aug 1991 | 30 Nov 1992 | British | 26 years |
| George Laidler Best | Director | 27 Aug 1991 | 29 Oct 1994 | British | 98 years |
| Gerald Robert Jennings | Director | 30 Nov 2007 | 20 Mar 2015 | British | 68 years |
| Herbert William Martin | Director | 8 May 2008 | 11 Jun 2010 | British | 70 years |
| Ian Marcus | Director | 24 Jul 2012 | 10 Dec 2012 | British | 66 years |
| James Oliver Pitt | Director | 23 Feb 2009 | 20 Nov 2013 | British | 55 years |
| John Drummond Bell | Director | 31 Oct 1994 | 27 Jul 1999 | British | 76 years |
| John Drummond Bell | Director | 28 Sept 2007 | 30 Jun 2012 | British | 76 years |
| Keith William Baillie Hannah | Director | 19 Dec 2011 | 20 Mar 2015 | British | 58 years |
| Lester Paul Hampson | Director | 30 Nov 2007 | 31 Jul 2015 | British | 64 years |
| Nicholas Jay Gilbert | Secretary | 12 Dec 2003 | 6 Aug 2004 | British | - |
| Paul Terence Millington | Secretary | 2 Jun 1998 | 12 Dec 2003 | British | - |
| Pauline Elizabeth Horsbrough | Director | 27 Aug 1991 | 28 Sept 2007 | British | 86 years |
| Peter James Cleary | Director | 30 Nov 2007 | 8 May 2008 | Irish | 68 years |
| Philip Arthur Turner | Director | 1 Oct 1999 | 28 Sept 2007 | British | 73 years |
| Robert James Jewell | Director | 26 May 2015 | 4 Nov 2016 | British | 47 years |
| Roderick Michael Evans | Director | 27 Aug 1991 | 28 Sept 2007 | British | 63 years |
| Roderick Michael Evans | Director | 10 Dec 2012 | 4 Nov 2016 | British | 63 years |
| Stuart Jobbins | Secretary | 6 Aug 2004 | 31 Dec 2011 | British | - |
| William Gerald Cooper | Director | 11 Jun 2010 | 19 Dec 2011 | British | 50 years |
| William Mcaulay Gibson | Director | 19 Nov 1992 | 2 Jun 1998 | British | 84 years |
| William Mcaulay Gibson | Secretary | 27 Aug 1991 | 2 Jun 1998 | British | - |