Dr. Hamilton grew up in Ohio and Wisconsin, where he developed his three primary passions for Nature, baseball, and music. He earned a B.S. in Geology at Harvard, and a Ph.D. in Ecology & Evolutionary Biology at Washington University in St. Louis. Clem was a professor of horticulture and plant systematics for 19 years, at the University of Washington and Claremont Graduate University, and has run public gardens in Seattle, Los Angeles, and Chicago prior to becoming President & CEO of The Holden Arboretum in 2008. He has conducted botanical research and fieldwork in Thailand, Panama, and Chile, as well as the U.S.
At Holden, Clem leads an outstanding team of staff and volunteers in renewing the arboretum’s dedication to growing trees and communities; conserving native forests; and engaging children with plants.