| Adrian Roger Wyatt | Director | 18 Sept 2002 | 25 May 2012 | British | 78 years |
| Alan Charles Coppin | Director | 1 Jun 1992 | 30 Sept 1998 | British | 76 years |
| Alexander Campbell Mccrindle | Director | 1 Jun 1992 | 30 Jun 1995 | British | 80 years |
| Angus Alexander Dodd | Director | 27 Jun 2016 | 7 Nov 2019 | British | 59 years |
| Brian Gordon Wolfson | Director | 1 Jun 1992 | 27 Sept 1995 | British | 91 years |
| Brian Nigel Potter | Director | 20 Apr 1993 | 6 Aug 2002 | British | 80 years |
| Bruce Anthony Morrison | Director | 1 Jun 1992 | 1 May 1999 | British | 65 years |
| Charles William Stringer | Director | 1 Jun 1992 | 8 Apr 1993 | British | 100 years |
| Charlotte Ind Eastwood | Secretary | 6 Aug 2002 | 26 May 2005 | British | - |
| David Nicholas Gavaghan | Director | 24 Mar 2011 | 16 Feb 2012 | British | 67 years |
| Denis Herbert Howell | Director | 1 Jun 1992 | 19 Apr 1998 | British | 103 years |
| Diana Carol Bromley | Secretary | 10 Oct 1994 | 6 Aug 2002 | British | - |
| Frederick Alan Murray | Director | 1 Jun 1992 | 17 Nov 1993 | British | 86 years |
| Geoffrey Roy Simmonds | Director | 18 Jan 1993 | 5 Feb 1993 | American | 97 years |
| James Robert Hamilton Stubber | Director | 6 May 2003 | 17 Feb 2006 | British | 72 years |
| Janet Elizabeth Viazzani | Director | 1 Apr 1999 | 1 Jun 2012 | English | 62 years |
| Jarvis Joseph Astaire | Director | 1 Jun 1992 | 7 May 1999 | British | 103 years |
| Mark Elliott | Director | 13 Oct 1998 | 6 Aug 2002 | British | 61 years |
| Maxwell David Shaw James | Director | 5 Jul 2011 | 27 Jun 2016 | British | 59 years |
| Michael Ben Jenkins | Director | 13 Jan 2017 | 31 Dec 2020 | British | 54 years |
| Michael Joseph Mcgrath | Secretary | 1 Jun 1992 | 10 Oct 1994 | British | - |
| Michael Marshall | Director | 18 Sept 2002 | 31 Mar 2012 | British | 76 years |
| Michael Skelton Potter | Director | 1 Jun 1992 | 31 Mar 1999 | British | 70 years |
| Nicholas Alan Potter | Director | 1 Apr 1999 | 10 Jun 2005 | British | 64 years |
| Nicholas Simon Keith Shattock | Director | 6 Aug 2002 | 24 Mar 2011 | British | 67 years |
| Rebecca Jane Worthington | Director | 6 Aug 2002 | 25 May 2012 | British | 55 years |
| Rebecca Jane Worthington | Director | 25 May 2012 | 31 Oct 2012 | British | 55 years |
| Richard James Stearn | Director | 26 Jun 2012 | 31 Mar 2015 | British | 58 years |
| Sandra Judith Odell | Secretary | 1 Jan 2013 | 5 Oct 2016 | - | - |
| Simon Geoffrey Carter | Director | 26 May 2015 | 13 Jan 2017 | British | 51 years |
| Susan Elizabeth Dixon | Secretary | 26 May 2005 | 1 Jan 2013 | British | - |
| Tonianne Dwyer | Director | 30 Nov 2006 | 16 Apr 2010 | Australian | 64 years |