| Andrew Nicholas Russell | Director | 1 Aug 2009 | 30 Nov 2011 | British | 59 years |
| Brona Rose Mckeown | Secretary | 19 Dec 2014 | 30 Mar 2015 | - | - |
| Calum Alexander Macleod | Director | 8 Oct 1993 | 15 Dec 1993 | British | 91 years |
| Charles Milne Winter | Director | 8 Oct 1993 | 15 Dec 1993 | British | 93 years |
| Clare Louise Gosling | Director | 30 Nov 2011 | 20 Aug 2015 | British | 53 years |
| Colin Harold Dennis | Director | 7 Oct 1999 | 1 Sept 2000 | British | 72 years |
| Daniel Mundy | Director | 18 Dec 2014 | 10 Mar 2017 | British | 50 years |
| Daniel O'neil | Director | 8 Oct 1993 | 7 Oct 1999 | British | 66 years |
| David Henry Tower | Director | 8 Oct 1993 | 15 Dec 1993 | British | 93 years |
| David James Mccarthy | Director | 26 Nov 2008 | 1 Aug 2009 | British | 61 years |
| David Norris Thompson | Director | 27 Apr 1990 | 8 Oct 1993 | British | 82 years |
| Deborah Anne Wagner | Director | 22 Jun 1996 | 7 Oct 1999 | British | 69 years |
| Deborah Anne Wagner | Secretary | 8 Oct 1993 | 25 Mar 1997 | British | - |
| Derek Michael Hoye | Director | 27 Apr 1990 | 27 Aug 1992 | British | 86 years |
| Derk Ernst Ernste | Director | 27 Apr 1990 | 7 Jul 1993 | - | 91 years |
| Francis Michael Shaw | Director | 8 Oct 1993 | 15 Dec 1993 | British | 90 years |
| Gavin Harry Laird | Director | 8 Oct 1993 | 15 Dec 1993 | British | 93 years |
| Gavin Macneill Stewart | Director | 8 Oct 1993 | 15 Jun 1994 | British | 67 years |
| George Wardlaw Burnet | Director | 27 Apr 1990 | 14 Jun 1990 | British | 99 years |
| Graham Harold Stow | Director | 7 Oct 1999 | 31 May 2003 | British | 82 years |
| Guillaume Francois Jonckheer | Director | 27 Apr 1990 | 8 Apr 1992 | British | 92 years |
| Herman Huizinga | Director | 8 Apr 1992 | 8 Oct 1993 | Dutch | 92 years |
| Janine Catherine Margaret Ditchburn | Secretary | 9 Apr 1990 | 8 Oct 1993 | British | - |
| John Edward Heaps | Director | 8 Oct 1993 | 15 Dec 1993 | British | 87 years |
| John Lawrence Hill | Director | 8 Oct 1993 | 15 Dec 1993 | British | 92 years |
| Katy Jane Arnold | Secretary | 22 Oct 2014 | 19 Dec 2014 | - | - |
| Louise Helen Provan | Director | 27 Aug 2009 | 18 Apr 2012 | British | 62 years |
| Marie Isobel Ross | Secretary | 25 Mar 1997 | 7 Oct 1999 | British | - |
| Neville Brian Richardson | Director | 7 Oct 1999 | 31 Dec 2003 | British | 69 years |
| Patricia Anne Wade | Secretary | 30 Nov 2009 | 19 Jul 2010 | - | - |
| Peter Vincent Burdon | Director | 8 Oct 1993 | 6 Mar 1996 | British | 79 years |
| Peter William Kerns | Director | 1 Aug 2009 | 31 Dec 2009 | British | 73 years |
| Phillip Andrew Lee | Director | 30 Oct 2003 | 26 Nov 2008 | British | 71 years |
| Richard Antony Burrows | Director | 11 Jun 2013 | 30 Nov 2014 | British | 56 years |
| Richard Robertson Trail Buchanan | Director | 9 Apr 1990 | 8 Oct 1993 | British | 82 years |
| Robert Wilson Gibson | Director | 7 Apr 1993 | 8 Oct 1993 | British | 71 years |
| Stephen Aitken | Director | 20 Aug 2015 | 6 Jan 2017 | British,australian | 49 years |
| Stephen Williams | Director | 22 Nov 2000 | 1 Aug 2009 | British | 76 years |
| Stephen Williams | Secretary | 7 Oct 1999 | 30 Nov 2009 | British | - |
| Susan Moss | Secretary | 19 Jul 2010 | 21 Oct 2014 | - | - |
| Trevor John Bayley | Director | 8 Oct 1993 | 15 Dec 1993 | British | 75 years |
| Trevor John Bayley | Director | 7 Oct 1999 | 21 Nov 2000 | British | 75 years |
| William Edward Newby | Director | 18 Apr 2012 | 21 Jun 2013 | British | 67 years |