Donald Sparks, University of Delaware (IMAGE) University of Delaware Caption Photographed in UD's Mentors' Circle, Donald L. Sparks, the S. Hallock du Pont Chair of Soil and Environmental Chemistry, and director of the Delaware Environmental Institute, is the recipient of the 2009-2010 Geoffrey Marshall Mentoring Award from the Northeastern Association of Graduate Schools. Credit Kathy F. Atkinson/University of Delaware Usage Restrictions Photo must include credit to University of Delaware License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.