| Alan John Frost | Director | 7 Aug 1998 | 14 Aug 2000 | British | 82 years |
| Anya Marjorie O'reilly | Director | 13 Feb 2013 | 15 Aug 2014 | British | 52 years |
| Bernadette Clare Barber | Secretary | 22 Mar 2003 | 3 Jun 2005 | British | - |
| David James Alexander Severs | Secretary | 4 Jan 1999 | 8 Feb 1999 | British | - |
| David John Amos | Director | 16 Dec 1999 | 30 Jun 2000 | British | 76 years |
| Fergus Harry Speight | Director | 28 Jul 2021 | 2 Mar 2022 | British | 62 years |
| Francis Alan Crayton | Director | 1 Oct 1993 | 31 Dec 1998 | British | 75 years |
| Francis John Webster | Director | 27 Dec 1996 | 17 Jul 1997 | British | 79 years |
| Geoffrey Charles Hull | Director | 10 May 1991 | 30 Sept 1993 | British | 79 years |
| George Desmond Shirley | Director | 10 May 1991 | 30 Sept 1993 | British | 89 years |
| George Petrie Robertson Mack | Director | 27 Dec 1996 | 6 Feb 1998 | British | 81 years |
| Gurdeep Singh Rai | Director | 1 Oct 2017 | 30 Sept 2019 | British | 45 years |
| Hilary Anne Staples | Director | 18 Jul 2016 | 21 Apr 2017 | British | 55 years |
| James Smith Burns | Secretary | 16 Jan 1998 | 4 Jan 1999 | British | - |
| John Cudworth | Director | 10 May 1991 | 27 Dec 1996 | British | 90 years |
| John Davies | Director | 1 Oct 2017 | 2 Aug 2019 | British | 55 years |
| John James Mclachlan | Director | 27 Dec 1996 | 31 Aug 1999 | British | 84 years |
| John Michael Walker | Secretary | 10 May 1991 | 30 Jun 1993 | British | - |
| John Richard Harrison | Director | 10 May 1991 | 30 Sept 1993 | British | 72 years |
| John Richard Harrison | Director | 1 Jul 1994 | 31 Jan 1997 | British | 72 years |
| Matt Blake | Director | 1 Oct 2017 | 29 Jul 2021 | British | 52 years |
| Michael Brian Jamieson | Secretary | 1 Jul 1993 | 15 Jan 1998 | British | - |
| Michael John Yardley | Director | 30 Jun 2000 | 1 Jul 2011 | British | 70 years |
| Michelle Anne Hill | Director | 1 Oct 2017 | 30 Apr 2019 | British | 49 years |
| Murray John Ross | Director | 30 Jun 2000 | 28 Jun 2007 | British | 79 years |
| Murray John Ross | Secretary | 1 Jun 2000 | 22 Mar 2003 | British | - |
| Paul Anthony Gilbert | Secretary | 10 Aug 1999 | 31 May 2000 | British | - |
| Shingirai Thaddeus Nyahasha | Director | 15 Aug 2014 | 22 Jul 2016 | British | 52 years |
| Simon Colin Mitchley | Director | 4 Feb 2015 | 31 Jul 2016 | British | 57 years |
| Stephen Shone | Director | 30 Jun 2000 | 13 Feb 2013 | British | 69 years |
| Terence Charles Albert Black | Director | 1 Oct 1993 | 31 Jan 1998 | British | 86 years |
| Timothy Walter Harris | Director | 18 Jul 2016 | 6 Nov 2018 | British | 57 years |
| William Moir Mcdonald | Director | 27 Dec 1996 | 30 Jun 2000 | British | 75 years |
| William Moir Mcdonald | Secretary | 9 Feb 1999 | 9 Aug 1999 | British | - |