1975 - Neil Gordon
1979 - Peter Tizard
1982 - John Wilson
1984 - Keith Brown
1986 - Brian Neville
1989 - David Gardner-Medwin
1992 - Victor Dubowitz
1995 - Richard Robinson
1998 - Stuart Green
2001 - Richard Newton
2004 - 2005 Colin Kennedy
2006 - 2007 Mike Pike
2008 - 2009 Helen Cross
2010 - 2011 Peter Baxter
2012 - 2013 Venkateswaran Ramesh
2014 - 2015 John Livingston