| Helen Suzanne Rodgers | Secretary | 30 Apr 1996 | 17 Oct 2001 | British | - |
| Henry William Knighton Stephens | Secretary | 6 Sept 1992 | 6 Sept 1993 | British | - |
| John Anthony Burns | Director | 6 Sept 1992 | 7 Jan 1996 | British | 90 years |
| John Peter Gillbe | Director | 16 Jun 2003 | 21 Oct 2009 | British | 72 years |
| Luke Henry Walter March | Director | 22 Mar 1994 | 30 Apr 1996 | British | 75 years |
| Michael Kent Atkinson | Director | 27 Apr 2000 | 31 May 2002 | Anglo Brazilian | 81 years |
| Nicholas Proctor Goodison | Director | 6 Sept 1992 | 11 Apr 2000 | British | 92 years |
| Peter Ellwood | Director | 6 Sept 1992 | 31 May 2003 | British | 83 years |
| Peter William Stuart Rowland | Director | 6 Sept 1992 | 28 Feb 1994 | British | 85 years |
| Philip Roy Hampton | Director | 27 Jun 2002 | 12 Jan 2004 | British | 73 years |
| Richard Warren | Director | 5 Nov 2009 | 30 Nov 2015 | British | 62 years |
| Robert Austin Connor | Secretary | 26 Aug 1993 | 30 Apr 1996 | British | - |
| Robert Charles Carefull | Director | 21 Feb 1996 | 16 Jun 2003 | British | 81 years |
| Stephen John Hopkins | Secretary | 17 Oct 2001 | 28 Feb 2010 | British | - |