| Alexander Michael Hathorn | Director | 1 Sept 2002 | 21 Sept 2022 | British | 78 years |
| Alistair James Low | Director | 1 Aug 2001 | 9 Mar 2016 | British | 84 years |
| Edward Arthur Brian | Director | 13 Jul 1989 | 1 Sept 1993 | British | 99 years |
| John Sutherland Gunn Kirkland | Director | 13 Jul 1989 | 31 Mar 2002 | British | 95 years |
| Malcolm Robert Angus Matthews | Director | 13 Jul 1989 | 31 Mar 2011 | British | 95 years |
| Michael John Rowley | Director | 13 Jul 1989 | 9 Mar 2016 | British | 74 years |
| Norman Lessels | Director | 1 Sept 1993 | 25 Aug 2009 | British | 88 years |
| Stuart Thomas Fairclough | Secretary | 13 Jul 1989 | 26 Jun 2014 | British | - |
| William Robin Douglas | Director | 13 Jul 1989 | 24 May 2002 | British | 95 years |