| Alexander Ritchie Mcnaught Fryer | Director | 13 Jun 1994 | 3 Mar 2003 | British | 80 years |
| Andrew Richard John Calvert | Director | 11 May 1992 | 10 Sept 1993 | British | 75 years |
| Beverley Edward John Dew | Director | 6 Jun 2014 | 5 Dec 2014 | British | 55 years |
| Christopher John Marsden | Director | 11 May 1992 | 29 Apr 1994 | British | 74 years |
| Christopher John Shankland | Director | 1 Oct 2012 | 6 Jun 2014 | British | 55 years |
| David Gordon Smith | Director | 4 Jul 2019 | 31 Dec 2019 | British | 66 years |
| Derek Knox | Director | 15 Jan 2007 | 31 Dec 2018 | British | 68 years |
| Franklin Hill | Director | 11 May 1992 | 29 Nov 1993 | British | 79 years |
| George Lawrence Bruce | Secretary | 15 Apr 1993 | 4 Oct 1993 | British | - |
| Graeme Taylor | Director | 1 Jul 2002 | 28 Sept 2012 | British | 74 years |
| Graeme Taylor | Secretary | 1 Jul 2002 | 28 Sept 2012 | British | - |
| Gregory William Mutch | Secretary | 28 Sept 2012 | 30 Sept 2015 | - | - |
| Haro Moushegh Bedelian | Director | 11 May 1992 | 21 Jun 1996 | British | 83 years |
| Henry Robinson Tarn | Director | 13 Jun 1994 | 30 Apr 1996 | British | 81 years |
| James Lindsay Nicolson | Director | 11 Nov 2003 | 31 Jul 2007 | British | 80 years |
| John Samuel | Director | 9 Feb 1993 | 11 Nov 2003 | British | 74 years |
| Kenneth James Winter | Director | 10 May 1994 | 1 Jan 2006 | British | 81 years |
| Michael John Clark | Secretary | 4 Oct 1993 | 1 Jul 2002 | British | - |
| Michael John Colin Milton | Secretary | 11 May 1992 | 15 Apr 1993 | British | - |
| Paul David England | Director | 5 Dec 2014 | 31 Oct 2016 | British | 56 years |
| Robert Clark | Director | 1 Jan 2006 | 29 Aug 2014 | British | 69 years |
| Stuart Kenneth Leadill | Director | 17 Sept 1993 | 6 Apr 1994 | British | 73 years |
| William Alexander Latto | Director | 11 May 1992 | 1 Jul 1994 | British | 82 years |