| EGAN, Giles Edward ACTIVE | Secretary | 10 Dec 2015 | | | | W Hallett And Co, 6 Royal Parade Kew Gardens, Richmond, Surrey, TW9 3QD |
| MCCREADIE, Douglas Ogilvie ACTIVE | Director | 28 Feb 2023 | | England | November 1941 | W Hallett And Co, 6 Royal Parade Kew Gardens, Richmond, Surrey, TW9 3QD |
| MORRIS, John ACTIVE | Director | 10 May 2025 | | England | October 1941 | W Hallett & Co, 6, Royal Parade, Richmond, TW9 3QD, England |
| SCOTT, Malcolm Paul, Mr. ACTIVE | Director | 07 Nov 2011 | | United Kingdom | February 1969 | W Hallett And Co, 6 Royal Parade Kew Gardens, Richmond, Surrey, TW9 3QD |
| EGAN, Cedric Jervis RESIGNED | Secretary | 08 Oct 2001 | 09 Dec 2015 | | | 6 Royal Parade, Kew Gardens, Richmond, Surrey, TW9 3QD |
| MCCARTHY, Pamela Rose RESIGNED | Secretary | 27 Jun 1994 | 08 Oct 2001 | | | 6 Clarendon Court, Richmond, Surrey, TW9 3HE |
| MORRIS, Anne Lamond RESIGNED | Secretary | | 27 Jun 1994 | | | 17 Clarendon Court, Kew Gardens Road, Richmond, Surrey, TW9 3HE |
| BLACKWELL, Joan Mary RESIGNED | Director | 07 Sep 1998 | 17 May 2011 | United Kingdom | June 1920 | 16 Clarendon Court, Kew Gardens Road, Richmond, Surrey, TW9 3HE |
| GRUPE, Marta Josephine RESIGNED | Director | 26 Nov 2007 | 04 Jun 2024 | United Kingdom | January 1934 | 5 Clarendon Court, Richmond, TW9 3HE |
| GRUPE, Marta Josephine RESIGNED | Director | 03 Nov 2003 | 20 Sep 2004 | United Kingdom | January 1934 | 5 Clarendon Court, Richmond, TW9 3HE |
| HADRYS, Victor Thomas Albert RESIGNED | Director | 03 Nov 2003 | 01 Nov 2004 | | October 1923 | 15 Clarendon Court, 21 Kew Gardens Road, Richmond, Surrey, TW9 3HE |
| HOBBS, George William RESIGNED | Director | | 20 Nov 2006 | | February 1921 | 2 Clarendon Court, Richmond, Surrey, TW9 3HE |
| HUGHES, Vivian Hilary RESIGNED | Director | 12 Oct 1992 | 17 Feb 1995 | | May 1913 | 8 Clarendon Court, Richmond, Surrey, TW9 3HE |
| MCCARTHY, Pamela Rose RESIGNED | Director | | 03 Nov 2003 | | August 1930 | 6 Clarendon Court, Richmond, Surrey, TW9 3HE |
| MILDENHALL, Helen Lindsey RESIGNED | Director | | 01 Nov 2004 | | November 1948 | 10 Clarendon Court, Richmond, Surrey, TW9 3HE |
| MORRIS, Anne Lamond RESIGNED | Director | | 27 Jun 1994 | | October 1931 | 17 Clarendon Court, Kew Gardens Road, Richmond, Surrey, TW9 3HE |
| MORRIS, Sallie RESIGNED | Director | 01 Nov 2004 | 01 Dec 2022 | England | March 1938 | 12 Lawn Crescent, Kew, Richmond, Surrey, TW9 3NR |
| PRICE, Eileen Josephine RESIGNED | Director | 01 Nov 2004 | 07 Nov 2011 | United Kingdom | March 1952 | Flat 9 Clarendon Court, Kew Gardens Road Kew, Richmond, Surrey, TW9 3HE |
| RANDALL, Ross Woolfrey RESIGNED | Director | 16 Sep 1996 | 10 Dec 2021 | England | December 1933 | 3, Gaston Bell Close, Richmond, Surrey, TW9 2DR, England |
| READER, Joan RESIGNED | Director | 10 Oct 2000 | 15 Oct 2002 | | May 1937 | 18 Clarendon Court, Richmond, Surrey, TW9 3HE |
| ROBERTS, David Geoffrey RESIGNED | Director | | 15 Aug 1997 | | November 1944 | 14 Clarendon Court, Richmond, Surrey, TW9 3HE |
| SEE, Sin Chong RESIGNED | Director | 14 Nov 2005 | 14 May 2026 | United Kingdom | June 1945 | 1 Clarendon Court, Kew Gardens Road, Richmond, Surrey, TW9 3HE |