2006 Prof Will Alexander
2005 Alec Hay
2005 Bingle Kruger
2005 Ross Parry-Davies
2004 Brian Bruce
2004 Gary Jones
2004 Donald Macleod
2002 RA Fone
2001 SM Gounden
2001 Dr GLD Ross
2001 L de Waal
2001 Prof A Kemp
1999 Prof F Hugo
1999 Prof D Sparks
1998 CM McMillan
1997 Prof GE Blight
1996 RA Pullen
1995 A van Niekerk
1994 G W Donaldson
1993 Prof K Knight
1992 K G Witthaus
1991 Dr A C Liebenberg
1990 B A Kantey
1990 E Hall
1990 M de Waal
1989 H A Loots
1987 H C Blersch
1987 C Skeen
1987 Dr H Olivier
1985 Dr R J Laburn
1985 Dr J P Kriel
1984 The Hon. Min. H Schoeman
1982 Prof D C Midgley
1982 Dr S S Morris
1981 Prof D W de Vos
1979 C Harris
1979 A S Robinson
1979 Sir Angus Paton CMG FRS
1978 D C Robertson
1978 The Hon Min S P Botha
1978 F J Hugo
1977 T C Watermeyer
1977 R D Hawkins
1976 Prof J E Jennings
1975 H R Moffat
1975 Dr D F Kokot
1974 F Jackson
1967 Prof W G Sutton
1962 Prof Baker of Windrush
Prof Sir John F Baker)
1958 Dr N Stutterheim