2012 J. Gregory
2011 O. Watson
2010 N. Hatchett
2009 P.J. Mather
2008 G.E.O. Sleightholme
2007 Harriet Ingham
2006 W.G.L. Brook
2005 Elizabeth Leith
2004 M.L. Bray
2003 W.G.L. Brook
2002 T.G. Leith
2001 J.K. Watson
2000 M.R.H. Webb
1999 T.H. Carew Hunt
1998 T.H. Carew Hunt
1997 J.S. Hepburn
1996 B.N. Palmer
1995 C.W. Prain
1994 R.J.S. Abraham
1993 S.A. King
1992 R.J.S. Abraham
1991 R.J. Burrage