Names
- Clark, Robert, 1777-1837.1
- Clark, Samuel, 1810-1875.1
- Clarke, Theodore Erastus.1
- Clay, Henry, 1777-1852.1
- Clayton, John M. (John Middleton), 1796-1856.1
- Clinton, DeWitt, 1769-1828.1
- Clinton, George, ca. 1686-1761.1
- Company of Merchants Trading to Africa1
- Company of Merchants of England Trading into the Levant Seas1
- Comstock, O. C. (Oliver Cromwell), 1780-1860.1
- Conway, Henry Seymour, 1721-1795.1
- Cooper, Grey, Sir, ca. 1726-1801.1
- Corbett, Thomas, ca. 1687-1751.1
- Cram, Elizabeth A. L.1
- Cramer, John, 1779-1870.1
- Croghan, George, 1791-1849.1
- Croswell, Edwin, 1797-1871.1
- Crowninshield, Benjamin Williams, 1772-1851.1
- Cuban Revolutionary Party.1
- Cushing, Thomas H. (Thomas Humphrey), 1755-1822.1