Names
- Carnegie, Andrew, 1835-19191
- Cather, Willa, 1873-19471
- Catholic Church -- Charities1
- Cerro de Pasco Mining Syndicate1
- Chapman family1
- Chapman, John Jay, 1862-19331
- Clarkson family1
- Cleveland, Frances Folsom, 1864-19471
- Cleveland, Grover, 1837-19082
- Clinton, DeWitt, 1769-18281
- Clinton, George, 1739-18121
- Columbia College (New York, N.Y.) -- : Students1
- Columbia University -- : Alumni and alumnae1
- Columbia University -- : Presidents1
- Columbia University. Trustees1
- Commager, Henry Steele, 1902-19981
- Cooper, James Fenimore, 1789-18511
- Corrigan, Michael Augustine, 1839-19021
- Cortelyou, George B (George Bruce), 1862-19401
- Cortissoz, Royal, 1869-19481