- Bernard Rosenblatt Regional Theatre Council for Northern California and Nevada papers, 1938/19798
- Broadway souvenir theatre programs collection, 1942/19976
- C-SPAN records, 1809/2012, bulk 1978/20122
- C. Harrison Mann, Jr. map collection, 1579/19611
- C. Harrison Mann, Jr. papers, 1832/197918
- Carol D. Litchfield microbiology collection1
- Carol R. Lubin papers, 1960/19811
- Charles Baptie photograph collection62
- Charles Lietwiler transportation collection, 1903/20055
- Charles Rodrigues playbill collection, 1879/200915
- Civic Association of Hollin Hills records, 1940/201329
- Clarence A. Steele papers1
- Clarence J. Robinson papers, 1897/19781
- Clark E. Warburton papers, 1920/19793
- College of Visual and Performing Arts records, 1930/20155