| Bernard Fisher | Director | 23 May 1991 | 31 Mar 1998 | British | 108 years |
| Charles James Holt Hunter | Director | 19 Nov 2001 | 16 Mar 2010 | British | 80 years |
| Christopher John Mccormack | Director | 30 Jun 2014 | 11 Sept 2015 | British | 60 years |
| Christopher Mark Hodson | Director | 18 Jun 2010 | 31 Aug 2016 | British | 52 years |
| Colin Raymond William Spedding | Director | 23 May 1991 | 9 Apr 1994 | British | 101 years |
| Digby Cyril Okell | Director | 20 Feb 2013 | 4 Oct 2013 | Australian | 71 years |
| Duncan Robert Jenkins | Director | 1 Jun 2007 | 1 Oct 2010 | British | 55 years |
| Henry Angest | Director | 31 Mar 1998 | 15 Dec 1999 | British | 86 years |
| Henry Lloyd Richards | Director | 9 May 1994 | 11 Sept 2015 | British | 75 years |
| James Michael Brady | Director | 1 Jun 2007 | 1 Oct 2010 | British | 73 years |
| James Michael Brady | Secretary | 1 Jun 2007 | 1 Oct 2010 | British | - |
| Kevin Patrick Joseph Moriarty | Director | 16 Mar 2010 | 31 Mar 2017 | British | 55 years |
| Mark James Terry | Director | 16 Mar 2010 | 28 Jun 2011 | British | 49 years |
| Maxwell Ainslie Martin Cowell | Secretary | 23 May 1991 | 9 May 1994 | British | - |
| Michael John Deakin | Director | 22 Jan 2000 | 16 Mar 2010 | British | 73 years |
| Nigel Graeme Allan | Director | 23 Aug 2000 | 16 Mar 2010 | British | 68 years |
| Noel Melville Stephens | Director | 9 May 1994 | 31 May 2007 | British | 86 years |
| Peter Agar Clery | Director | 23 May 1991 | 31 Mar 1998 | British | 89 years |
| Peter Stals | Director | 4 Oct 2013 | 11 Sept 2015 | British | 47 years |
| Richard Michael Pilkington | Director | 16 Mar 2010 | 10 May 2010 | British | 59 years |
| Robert Philippe Walther | Director | 11 Jan 2000 | 19 Nov 2001 | British | 83 years |
| Robin Arthur Elidyr Herbert | Director | 23 May 1991 | 15 Dec 1999 | British | 92 years |
| Robin Michael Drayton | Director | 23 May 1991 | 9 May 1994 | British | 80 years |
| Robin Michael Drayton | Director | 31 Mar 1998 | 31 Jul 2008 | British | 80 years |
| Robin Michael Drayton | Secretary | 9 May 1994 | 31 Jul 2008 | British | - |
| Roger David Corley | Director | 9 May 1994 | 15 Dec 1999 | British | 93 years |
| Steven Craig Willingham | Director | 28 Jun 2011 | 22 Sept 2011 | British | 57 years |
| Steven Craig Willingham | Director | 20 Feb 2013 | 30 Jun 2014 | British | 57 years |
| Susan Annabel Margaret Fogarty | Director | 11 Jan 2000 | 4 Aug 2000 | British | 84 years |
| Thomas Heyes | Director | 23 May 1991 | 9 May 1994 | British | 90 years |
| Warren Ashley Persky | Director | 11 Sept 2015 | 4 Sept 2017 | British | 61 years |