Indiana's first state forester; Deam was a taxonomic botanist known for his work on trees, plants, shrubs, and flowers of Indiana. Collection consists of diaries, correspondence, copies of published books, library records, financial records, notations on specimens, records of sale of Deam's library and herbarium to Indiana University, articles about him, information about his family, and a paper by Deam on the pharmacy business. Includes correspondence from Charles A. Weatherby, curator of Gray Herbarium at Harvard University.