| Andrew James Rinaldi | Director | 6 Sept 2010 | 30 Jan 2018 | British | 57 years |
| Andrew Robert Johnson | Secretary | 11 Jun 1991 | 1 Jun 2001 | British | - |
| Anthony Jarvis | Director | 11 Jun 1991 | 31 Dec 1992 | British | 91 years |
| Anthony Oliver Bickerstaff | Director | 18 Jul 2001 | 9 Mar 2006 | British | 61 years |
| Bernard Leslie Moseley | Director | 11 Jun 1991 | 31 Dec 1992 | British | 92 years |
| Brian William Hendry | Director | 11 Jun 1991 | 5 Apr 2000 | British | 81 years |
| Bruce Cecil Russell | Director | 11 Jun 1991 | 1 Dec 1999 | United Kingdom | 81 years |
| Colin Jeffrey Clark | Director | 26 Jun 1991 | 31 Aug 2000 | British | 81 years |
| Colin Richard Clapham | Director | 30 Jan 2018 | 31 Oct 2019 | British | 80 years |
| Crispin Alexander Rowell | Director | 31 Oct 2003 | 19 Dec 2006 | British | 67 years |
| Crispin Alexander Rowell | Director | 19 Dec 2006 | 2 Feb 2007 | British | 67 years |
| David Douglas Percival White | Director | 9 Nov 1992 | 18 Jul 2001 | British | 75 years |
| Denis James Anthony Mac Daid | Director | 11 Jun 1991 | 18 Jul 2001 | British | 81 years |
| George Henry Restall | Director | 19 Dec 2006 | 22 Aug 2008 | British | 55 years |
| Ian James Greenwood | Director | 1 Jan 1993 | 5 Apr 1999 | British | 77 years |
| Jennifer Canty | Director | 24 Apr 2024 | 30 Sept 2025 | British | 32 years |
| John Eugene Cox | Director | 11 Jun 1991 | 31 Dec 1996 | British | 89 years |
| John Gower Bevan | Director | 11 Jun 1991 | 31 Dec 1991 | British | 94 years |
| Katherine Elizabeth Hindmarsh | Director | 31 Oct 2019 | 9 Oct 2023 | British | 36 years |
| Matthew Saul Rose | Director | 22 Aug 2008 | 31 Dec 2008 | British | 57 years |
| Michael Andrew Lonnon | Secretary | 1 Jun 2001 | 9 Dec 2024 | British | - |
| Michael David Walker | Director | 26 Jun 1991 | 5 Apr 2000 | British | 87 years |
| Omolola Olutomilayo Adedoyin | Director | 9 Oct 2023 | 24 Apr 2024 | British | 50 years |
| Peter Stuart Matthews | Director | 22 Aug 2008 | 6 Sept 2010 | British | 57 years |
| Raymond Edward Brian Shine | Director | 13 Nov 2000 | 31 Oct 2003 | British | 79 years |
| Robin Courtney Guy | Director | 11 Jun 1991 | 31 Dec 1996 | British | 92 years |
| Rodney Gordon Franks | Director | 1 Dec 1993 | 5 Apr 2000 | British | 82 years |
| Timothy Peach | Director | 18 Jul 2001 | 22 Aug 2008 | British | 67 years |
| Tina Jagdish Webster | Director | 1 Jan 2009 | 4 Mar 2011 | British | 46 years |
| Walter Hogbin | Director | 11 Jun 1991 | 18 Nov 1996 | British | 88 years |
| William Gordon Craig | Director | 11 Jun 1991 | 31 Dec 1992 | British | 94 years |