2022 Dionne Gravesande and Anton Muller
2018 Ruth Gee and Hilary Topp
2015 Doyé Agama and Ruth Gee
2012 Janet Scott and Doyé Agama
2009 Val Potter and Declan Lang
2006 John Rackley and Val Potter
2003 David Lavender and Anne Doyle
2001 David Lavender and Anne Doyle
1999 Terry Garley and David Hawtin
1997 Terry Garley and David Hawtin
1995 Hugh Cross and Terry Garley
1993 Hugh Cross and Terry Garley
1991 Hugh Cross and Terry Garley
1990 John Nicholson and Terry Garley
(CTE was inaugurated in 1990)