Mthobeli Guma, David Pottie, Mats Lundahl, Harold G. Marcus, Simon Bockie, Peter Henshaw, JOHN CARTWRIGHT, Dennis D. Cordell, Ralph A. Austen, Allison Drew, Myron Echenberg, J. Booth
• 1998
Heinz Gollwitzer, Ralph A. Austen, L. H. Gann, Kenneth C. Wylie, P. Duignan
• 1970