1968 – Ralph E. Grim<br />
1969 – C. S. Ross<br />
1970 – Paul F. Kerr<br />
1971 – Walter D. Keller<br />
1972 – G. W. Brindley<br />
1975 – William F. Bradley<br />
1975 – Sturges W. Bailey<br />
1975 – Jose J. Fripiat<br />
1977 – M. L. Jackson<br />
1979 – Toshio Sudo<br />
1980 – Haydn H. Murray<br />
1984 – C. Edmund Marshall<br />
1985 – Charles E. Weaver<br />
1988 – Max M. Mortland<br />
1989 – R. C. Reynolds, Jr.<br />
1990 – Joe L. White<br />
1990 – John Hower<br />
1991 – Joe B. Dixon<br />
1992 – Philip F. Low<br />
1993 – Thomas J. Pinnavaia<br />
1995 – W. D. Johns<br />
1996 – Victor A. Drits<br />
1997 – Udo Schwertmann<br />
1998 – Brij L. Sawhney<br />
2000 – Boris B. Zvyagin<br />
2001 – Keith Norrish<br />
2002 – Gerhard Lagaly<br />
2004 – Benny K. G. Theng<br />
2005 – M. Jeff Wilson<br />
2006 – Frederick J. Wicks<br />
2007 – no award made<br />
2008 – Norbert Clauer<br />
2009 – Joseph W Stucki<br />
2010 – J. M. Serratosa<br />
2011 – Sridhar Komarneni<br />
2012 – Akihiko Yamagishi<br />
2013 – Stephen Guggenheim<br />
2014 – no award made<br />
2015 – James Kirkpatrick<br />
2016 – Lisa Heller-Kallai<br />
2018 – Gordon "Jock" Churchman<br />
2019 – Dennis D. Eberl<br />
2020 – Eduardo Ruiz-Hitzky<br/>
2021 – David L. Bish<br/>