- C. Harrison Mann, Jr. map collection, 1579/19611
- C. Harrison Mann, Jr. papers, 1832/19792
- Carol D. Litchfield microbiology collection2
- Carol D. Litchfield microbiology collection, 1924/19972
- Carol R. Lubin papers, 1960/19812
- Charles Baptie photograph collection2
- Charles Lietwiler transportation collection, 1903/20051
- Charles Rodrigues playbill collection, 1879/200937
- Chester H. McCall papers, 1931/19471
- Clarence J. Robinson papers, 1897/19782
- Clark E. Warburton papers, 1920/197913
- Cookbooks and cooking pamphlets collection, 1910/20083
- Edith Malleis nursing student scrapbook, 1924/19271
- Edward Vitale violin music collection, 1700/19001
- Edward Vitale violin music collection, 1886/19512