Henry County Institute of Science Trenton, IA 1869-1938 Wanted for purchase or copy: photographs, memorabilia, recollections, items of interest for research Please contact John Bennett 1913 Franklin Ave., Mt. Pleasant, IA johnpbennett@farmtel.net Henry County Institute of Science Trenton , IA 1869-1938 Wanted for purchase or copy : photographs , memorabilia , recollections , items of interest for research Please contact John Bennett 1913 Franklin Ave. , Mt. Pleasant , IA johnpbennett@farmtel.net