| Andrew Michael Smith | Director | 31 Jul 2009 | 30 Sept 2011 | British | 63 years |
| Anthony Periton Fage | Director | 26 Apr 1992 | 31 Mar 1993 | British | 95 years |
| Artemio Gerardo Salinas Gonzalez | Director | 1 Mar 2005 | 7 Nov 2007 | Mexican | 67 years |
| Brian George Mccarthy | Director | 1 Apr 1997 | 30 Apr 2003 | British | 80 years |
| Charles Bennett Brown | Secretary | 1 Mar 1999 | 26 May 2000 | British | - |
| Daphne Margaret Murray | Secretary | 29 Apr 2005 | 30 Jun 2018 | British | - |
| David Llewellyn | Director | 1 Jan 1996 | 24 Aug 1996 | British | 82 years |
| Derek William Jenkins | Director | 26 Apr 1992 | 30 May 1997 | British | 92 years |
| Emma Jayne Ashenden | Secretary | 20 Dec 2019 | 2 Feb 2023 | - | - |
| Frank James Standish | Secretary | 26 May 2000 | 1 Oct 2004 | British | - |
| Hector Tassinari Eldridge | Director | 1 Jul 2016 | 22 Jun 2018 | Spanish | 55 years |
| James Arthur Brooks | Director | 1 Apr 1997 | 1 Mar 2005 | British | 78 years |
| Jason Alexander Smalley | Director | 24 Jun 2009 | 22 Oct 2016 | British | 57 years |
| John Anthony Robinson | Director | 1 Apr 1997 | 1 Apr 2004 | British | 78 years |
| John Camden | Director | 26 Apr 1993 | 26 Apr 1994 | British | 101 years |
| John Cedtic Keith Young | Director | 1 Apr 1997 | 1 Jul 1998 | British | 85 years |
| Larry Jose Zea Betancourt | Director | 20 Oct 2008 | 1 Oct 2019 | Venezuelan | 65 years |
| Laurence Burdett Dagley | Director | 22 Jun 2018 | 23 Nov 2020 | British | 50 years |
| Marco Antonio Moreno Estrada | Director | 22 Aug 2005 | 31 Jul 2009 | Mexican | 71 years |
| Mary Elizabeth Ainley Macclancy | Director | 1 Jul 1998 | 1 Mar 2005 | British | 61 years |
| Michael David Hampson | Director | 9 Jul 1997 | 29 Sept 2004 | British | 68 years |
| Michael Leslie Collins | Director | 1 Mar 2005 | 20 Oct 2008 | British | 70 years |
| Narinder Nath Kalia | Secretary | 26 Apr 1992 | 1 Mar 1999 | British | - |
| Peter Hamilton Fulke Bullard | Director | 26 Apr 1992 | 28 Jun 1996 | British | 92 years |
| Peter Lance Young | Director | 22 Sept 1993 | 30 Jun 2000 | British | 88 years |
| Precel James Owen | Director | 26 Apr 1992 | 31 Dec 1995 | British | 96 years |
| Rebecca Juliet Wright | Secretary | 30 Jun 2018 | 20 Dec 2019 | - | - |
| Robert Ernest Lambourne | Director | 30 May 1997 | 14 Feb 2003 | British | 74 years |
| Tiffany Fern Brill | Secretary | 1 Oct 2004 | 29 Apr 2005 | British | - |