George F. Sprague / John C. Walker (1978) · Jay Lush / Kenneth Blaxter (1979) · Karl Maramorosch (1980) · John O. Almquist / Henry A. Lardy / Glenn W. Salisbury (1981) · Wendell L. Roelofs (1982) · Don Kirkham / Cornellis T. de Witt (1983/4) · Robert H. Burris (1984/5) · Ralph Riley / Ernest R. Sears (1986) · Theodor O. Diener (1987) · Charles Thibault / Ernest John Christopher Polge (1988) · Peter M. Biggs / Michael Elliott (1989) · Jozef Stefaan Schell (1990) · Shang Fa Yang (1991) · John E. Casida (1993) · Carl B. Huffaker / Perry L. Adkisson (1994/5) · Morris Schnitzer / Frank J. Stevenson (1995/6) · Neal L. First (1996/7) · Ilan Chet / Baldur R. Stefansson (1998) · Gurdev Khush (2000) · Roger N. Beachy / James E. Womack (2001) · R. Michael Roberts / Fuller W. Bazer (2002/3) · Yuan Longping / Steven D. Tanksley (2004) · Ronald L. Phillips / Michel A. J. Georges (2006/7) · John A. Pickett / James H. Tumlinson / W. Joe Lewis (2008)