- Charles Burchard Collection, 1935/19891
- Charles S. Worley, Jr., Collection, 1950/19821
- Christopher C. Kraft Papers, 1941/1998, bulk 1941/19821
- Clarence Paul Miles Papers, 1902/19601
- Clarence Trent Papers, 1958/19911
- Clinton H. Cowgill Collection, 1916/19771
- College of Agriculture and Life Sciences (CALS) Collection,, 1900/20011
- College of Home Economics Metabolism Study Collection, 1956/19601
- Dan H. Pletta Papers, 1942/19961
- Dayton M. Kohler Papers, 1889/19711
- Diploma Collection, 1877/19641
- Dr. Richard Zallen Papers, 1940/20071
- Earl H. Hornbarger Collection,, 1912/19631
- Earl T. Swink Papers, 1949/19721
- Earle D. Gregory Collection, 1915/19971