James Cleland Gilchrist, 1876–1886 Homer Horatio Seerley, 1886–1928 Orval Ray Latham, 1928–1940 Malcolm Poyer Price, 1940–1950 James William Maucker, 1950–1970 John Joseph Kamerick, 1970–1983 Constantine William Curris, 1983–1995 Robert D. Koob, 1995–2006 Benjamin J. Allen, 2006–2013 William Ruud, 2013–2016 Mark Nook, 2017–present