| Andrew Mason | Director | 5 Apr 1996 | 28 Dec 1996 | British | 65 years |
| Andrew Michael Stoddart | Director | 1 Aug 1997 | 30 Nov 2000 | British | 79 years |
| Barbara Jane Moorhouse | Director | 1 Aug 1997 | 7 Apr 1998 | British | 67 years |
| Barbara Roberts | Director | 29 Oct 1991 | 5 Apr 1996 | British | 94 years |
| Christopher Anthony Saxton | Director | 9 Aug 2000 | 3 Feb 2004 | British | 69 years |
| Clare Sheridan | Secretary | 31 May 2014 | 27 Jun 2024 | - | - |
| David Kevin Mulligan | Director | 1 Apr 2004 | 25 Feb 2013 | British | 56 years |
| Elizabeth Margaret Innes | Director | 29 Oct 1991 | 14 Mar 1996 | British | 89 years |
| Graham Martin Ellis | Director | 24 Apr 1998 | 12 Apr 2001 | British | 74 years |
| Guy Brian Roberts | Director | 29 Oct 1991 | 5 Apr 1996 | British | 64 years |
| Heath Innes | Director | 29 Oct 1991 | 5 Apr 1996 | British | 92 years |
| Heath Innes | Secretary | 29 Oct 1991 | 5 Apr 1996 | British | - |
| Helen Mary Mason | Secretary | 27 Jun 2024 | 22 Apr 2025 | - | - |
| Isobel Mary Nettleship | Secretary | 1 Jun 2005 | 31 May 2014 | British | - |
| John Cameron Scouller | Director | 1 Jan 1999 | 12 Apr 2001 | British | 75 years |
| John Christopher Morgan | Director | 1 Jul 1998 | 9 Aug 2000 | British | 70 years |
| John Michael Bishop | Director | 1 Aug 1997 | 1 Jun 2005 | British | 80 years |
| John Milburn Holmes | Director | 29 Oct 1991 | 19 Jun 1998 | British | 86 years |
| Joy Elaina Caroline Scott | Director | 11 Apr 1996 | 1 Aug 1997 | British | 66 years |
| Joy Elaina Caroline Scott | Secretary | 11 Apr 1996 | 1 Aug 1997 | British | - |
| Keith Brian Watson | Director | 27 Mar 2001 | 30 Jun 2003 | British | 67 years |
| Martin Leslie Scott | Director | 5 Apr 1996 | 1 Aug 1997 | British | 66 years |
| Matthew Hibbert | Director | 1 Jun 2009 | 30 Mar 2012 | British | 59 years |
| Michael James Holder | Director | 27 Mar 2001 | 30 Sept 2003 | British | 76 years |
| Neil Skelding | Director | 30 Mar 2012 | 18 Jul 2013 | British | 54 years |
| Paul Arthur Pritchett | Director | 5 Apr 1996 | 1 Aug 1997 | British | 61 years |
| Paul Arthur Pritchett | Director | 24 Apr 1998 | 12 Apr 2001 | British | 61 years |
| Paul Whitmore | Director | 1 Jun 2005 | 31 Dec 2013 | British | 70 years |
| Phyllis Roberts | Director | 29 Oct 1991 | 22 Feb 1994 | British | 115 years |
| Robert Andrew Bath | Director | 27 Mar 2001 | 1 Jun 2005 | British | 61 years |
| Robert Brian Roberts | Director | 29 Oct 1991 | 5 Apr 1996 | British | 94 years |
| Stephen Kelly | Director | 27 Mar 2001 | 1 Jun 2005 | British | 71 years |
| Stephen Paul Crummett | Director | 18 Jul 2013 | 7 May 2024 | British | 60 years |
| William Raymond Johnston | Director | 30 Nov 2000 | 1 Jun 2005 | British | 80 years |
| William Raymond Johnston | Secretary | 1 Aug 1997 | 1 Jun 2005 | British | - |