- Concerts11
- Conductors (Music)1
- Conference of Chief Judges of the United States Courts of Appeals1
- Construction + architects1
- Construction workers15
- Cook, Harvey Toliver, 1848-19437
- Cooks4
- Corbett, Katherine Florida Townes, 1863-19522
- Cornerstone laying23
- Cotton manufacture1
- Cox, Hiden Toy, 1876-193712
- Cox, Hiden Toy, 1917-7
- Cox, Nora Hough, 1882-19595
- Craig, William Marshall, 1889-19701
- Cross-country runners3
- Cross-country running3
- Cunningham, Gustavus Watts, 1881-19681
- Dairy farming1
- Dance16
- Dance Study and teaching16