- C and O for Progress (map), 1947/19721
- C-SPAN records, 1809/2012, bulk 1978/20124
- C. David Loeks Papers, 1947/199710
- C. E. Branscome Papers, 1958/19602
- C. Edwin Baker Papers, 1886/2013, bulk 1970/20091
- C. Ernest Cooke Papers, 1920/19601
- C. Ernest Edgar III papers, 1956/20101
- C. Eugene Rowe Papers, 1949/19873
- C. F. Tucker Brooke (1883-1946) Papers, 1870/1989, bulk 1895/19451
- C. Harrison Mann, Jr. Map Collection, 1579/19611
- C. Harrison Mann, Jr. map collection, 1579/19611
- C. Harrison Mann, Jr. papers, 1832/197955
- C. Harrison Mann, Jr. papers, 1950/19771
- C. Howard Capito Collection of O. W. Link photographic materials, 1955/19581
- Cadet Life, Organizations, and Activities, 18451