Dr. Yulan C. Tong, who retired from The Dow Chemical Company, received her M.S. in 1958 and her Ph.D. at the University of Illinois in 1961 under the direction of Nelson Leonard. Dr. Tong participated in workshops for junior high students interested in math and science, and has acted as a docent for Mt. Diablo State Park. Dr. Tong provided a seed donation matched by Dow AgroSciences to launch the first Sylvia Stoesser Lecture in 2000. In fall 2015 Dr. Tong's generous gift has endowed the Sylvia Stoesser Lecture series.