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Penn State Plant Pathology Department Heads - seated (l-r): James Tammen (1963-75), James R. Bloom (interim, 1975-76); standing (l-r): Samuel H. Smith (1976-81), John M. Skelly (1982-85), Herbert Cole, Jr. (1986-93), Elwin L. Stewart (1993-2002), Leonard J. Francl (2002-2005)