The Clifford D. Carpenter Papers include Carpenter's research, writings, and photographs. Materials chronicle the events leading to his election to the International Poultry Hall of Fame and the American Poultry Historical Society Poultry Hall of Fame (1968). The collection also includes three letters written by Carpenter to his wife in 1934 and 1935 while he was on business trips.

The World's Poultry Science Association Records contain materials collected by various members and officers of the organization. Included are correspondence, reports, publications, awards information, ephemera, meeting minutes, and photographs. The majority of the materials correspond with member participation in the World's Poultry Congresses, European poultry conferences, and other meetings. The earliest material dates from the first World's Poultry Congress in 1921.

The Clair Elman Terrill Collection contains proofs and photographs for U.S. Department of Agriculture (USDA) bulletins and circulars, sheep and goat registry and breeding records, a card catalog of publications on rabbits, and black and white photographs of rabbits and related subjects. There are papers related to the U.S. Rabbit Experiment Station in Fontana, California, and the U.S. Fur Experiment Station in Ithaca, New York. Also included are photographs, glass and acetate negatives, equipment, and wool samples used in Hardy's work for the U.S. Animal Husbandry Experiment Station (part of the USDA Division of Animal Husbandry) and his thin cross-section device. There are records of the Sheep and Fur Animal Research Branch, Animal Husbandry Division, Agricultural Research Service. Additionally, the collection contains over 200 wool samples from 1950 to 1960 labeled with sheep identification number, location, and date. Samples were obtained in Beltsville, Maryland, and other locations in the United States.