| 2006 | Wendy Mao, University of Chicago |
| Junfeng Zhang, University of California, Riverside |
| 2005 | Jennifer Jackson, Carnegie Institution of Washington |
| 2004 | Motohiko Murakami, Tokyo Institute of Technology |
| Sergio Speziale, Princeton University |
| 2003 | Annette Kleppe, University of Oxford |
| 2002 | Sébastien Merkel, Ecole Normale Supérieure de Lyon, France |
| Gerd Steinle-Neumann, University of Michigan–Ann Arbor |
| 2001 | Nathalie Bolfan-Casanova, Bayreuth Geoinstitut |
| Sang-Heon Dan Shim, Princeton University |
| 2000 | Steven D. Jacobsen, University of Colorado |
| 1999 | Tomoaki Kubo, Tohoku University, Japan |
| Daisuke Yamazaki, University of Tokyo |
| 1998 | Tye Gribb, University of Wisconsin, Madison |
| Abby Kavner, University of California, Berkeley |
| 1997 | Ljuba Kerschhofer, Bayerisches Geoinstitut, Bayreuth, Germany |
| Dr. Wenlu Zhu, State University of New York, Stony Brook |
| 1996 | Baosheng Li, State University of New York, Stony Brook |
| 1995 | Nicholas Beeler, Brown University |
| Nobumasa Funamori, University of Tokyo |
| 1994 | Andy Hsi-Tien Shen, Cornell University |
| Andrei Zerr, Max Planck Institute, Mainz |
| 1993 | Kathleen J. Kingma, The Johns Hopkins University |
| 1992 | Michael Kruger, University of California, Berkeley |
| 1991 | Thomas Duffy, California Institute of Technology |
| 1990 | Donald Isaak, University of California, Los Angeles |
