- Arthur Sibold Collection, 1964/19751
- Benjamin Cottrell Papers, 1910/19831
- C. Eugene Rowe Papers, 1949/19871
- Carl George Krieger Papers, 1930/19681
- Carol M. Newman, Jr., Papers, 1930/19871
- Carrie T. Sibold Family Papers, 1912/1990, bulk 1974/19901
- Christopher C. Kraft Papers, 1941/1998, bulk 1941/19821
- Clarence Trent Papers, 1958/19911
- Conan W. Vaughan, Jr., Papers, 1923/19921
- Daniel E. Wright Papers, 1903/19731
- Doug Burton Papers, 1962/1979, bulk 1978/19791
- Dr. Richard Zallen Papers, 1940/20071
- Earl A. Thornton Papers, 1885/20001
- Earle D. Gregory Collection, 1915/19971
- Edmund Welch Hobbs Scrapbook, 1928/19661