- Byllesby Dam, Carroll County, Virginia, Photographs, 19121
- Byllesby, Virginia, Dam Construction Photograph Album1
- Byron Nelson Cooper Papers, 1925/19711
- C. Wayne Ottinger Papers, 19921
- Carl George Krieger Papers, 1930/19681
- Chapman J. French Papers, 1903/19571
- Christopher C. Kraft Papers, 1941/1998, bulk 1941/19821
- Christopher Kraft Letter to Elizabeth Plank, 19451
- Cincinnati & Eastern Railroad Company Records, 1876/18771
- Clarence Trent Papers, 1958/19911
- Claudius Lee Papers, 1887/19541
- Clyde Kessler Papers, 1990/19911
- Culinary Pamphlet Collection1
- Curtis W. Roane History of Plant Pathology in Virginia and Biographies of Plant Pathologists Papers, 1993/19991
- Cyrus W. Field Cable Section and Letter, 18581