| Alan Michael Smith | Director | 1 Jul 2014 | 30 Sept 2016 | British | 74 years |
| Denis Stanton Wood | Director | 6 Nov 1992 | 4 Mar 1998 | British | 75 years |
| Derek Fowler | Director | 1 Oct 1992 | 4 Mar 1998 | British | 97 years |
| Duncan Valentine Brand | Director | 1 Oct 1992 | 9 Nov 2001 | British | 85 years |
| Graeme Taylor | Director | 6 Nov 1992 | 4 Mar 1998 | British | 64 years |
| Herbert Crawford Marshall | Director | 1 Oct 1992 | 6 Nov 1992 | British | 87 years |
| Herbert Crawford Marshall | Director | 9 Nov 2001 | 27 Oct 2004 | British | 87 years |
| Herbert Crawford Marshall | Secretary | 1 Oct 1992 | 27 Oct 2004 | British | - |
| John Michael Hebblethwaite | Director | 4 Mar 1998 | 28 Apr 2010 | British | 88 years |
| Leona Jacqueline Bendall | Director | 6 Nov 1992 | 31 Dec 1993 | British | 77 years |
| Mark Russell Pengelly | Director | 15 Mar 2022 | 18 Apr 2024 | British | 62 years |
| Michael Jonathan Vowles-sheridan | Director | 6 Nov 1992 | 9 Jan 1995 | British | 78 years |
| Michael Paul Sheffield | Director | 15 Jan 2009 | 30 Jun 2014 | British | 65 years |
| Neil Alan Pates | Director | 6 Nov 1992 | 4 Mar 1998 | British | 70 years |
| Peter Cawthorn | Director | 3 Apr 1995 | 4 Mar 1998 | British | 75 years |
| Peter Ronald Young | Director | 26 Oct 2016 | 31 Jan 2020 | British | 59 years |
| Richard Hugh Mcmurdo Sweet | Director | 4 Mar 1998 | 9 Nov 2001 | British | 88 years |
| Richard William Side | Director | 4 Mar 1998 | 8 Nov 2008 | British | 80 years |
| Richard William Side | Director | 4 Oct 2011 | 16 Jan 2018 | British | 80 years |
| Vivienne Gay Chesterfield | Director | 16 Feb 1994 | 4 Mar 1998 | British | 73 years |
| Vivienne Gay Chesterfield | Director | 16 Oct 2003 | 16 Jun 2025 | British | 73 years |