| Ernest Herbert George | Director | 17 Apr 1992 | 26 May 1993 | British | 107 years |
| Gerald William Victor Daniels | Secretary | 6 Jan 2007 | 31 Dec 2013 | British | - |
| Grant John Keys | Director | 13 Feb 2019 | 14 May 2020 | British | 45 years |
| John Arthur Turkentine | Director | 16 Feb 2011 | 3 Dec 2014 | British | 74 years |
| Jonathan Martin Gibbins | Secretary | 6 Jun 2018 | 7 Jun 2018 | - | - |
| Michael Frederick Hannant | Director | 17 Apr 1992 | 22 Mar 2002 | British | 90 years |
| Peter Smith | Director | 8 Feb 2007 | 3 Dec 2014 | British | 71 years |
| Ralph Michael Sydney Saunders | Director | 3 Dec 2014 | 13 Feb 2019 | British | 68 years |
| Robert George Russell Carter | Director | 17 Apr 1992 | 16 Feb 2011 | British | 73 years |
| Robert John Alflatt | Secretary | 31 Dec 2013 | 6 Jun 2018 | - | - |
| Roy Arthur Burton | Director | 22 Mar 2002 | 26 May 2010 | British | 86 years |
| Roy Wavell Gibson | Secretary | 17 Apr 1992 | 6 Jan 2007 | British | - |