Names
- Cripple Creek and Colorado Springs Railroad Company.1
- Critchley, William.1
- Cronkrite, J. B.1
- Crozer, John.1
- Crystal Palace (Great Exhibition, 1851, London, England)1
- Cullen, Clarence Louis, -1922.1
- Cumming, Hooper, 1788-1825.1
- Cummins, R. K.1
- Curry, A. B.1
- Curtis, Benjamin Robbins, 1809-1874.1
- Cushing, Caleb, 1800-1879.1
- Cutler, Elbridge Jefferson, 1831-1870.1
- Cutting, John Browne, 1755?-1831.1
- Cutts, Richard, 1771-1845.1
- Cuyler, Theodore L. (Theodore Ledyard), 1822-1909.1
- Dana, Richard Henry, 1815-1882.1
- Dana, Richard Henry, Jr., 1815-1882.1
- Dandridge, Adam Stephen, 1814-1890.1
- Dandridge, Philip P., 1817-1881.1
- Danforth, Royal W.1