- Clemow, Frank G. (Frank Gerard), 1863-19391
- College of Physicians of Philadelphia.1
- Collier, George Frederick, 1799-18771
- Collins, G. T. (George T.), M.D1
- Cooke, William, 1785-18731
- Copland, James, 1791-18701
- Corbyn, Frederick.1
- Cowdell, Charles, 1824-18711
- Crawford, Adair, 1748-17951
- Crisp, Edwards, 1806-18821
- Cuningham, J. M. (James McNabb), 1829-19051
- Curie, Paul Francis, 1799-18531
- Dake, J. P. (Jabez Philander), 1827-18941
- Dickson, Samuel, 1802-1869 author1
- Dixon, John, M. D1
- Donaldson, James.1
- Donnelly, William.1
- Drake, Daniel, 1785-18521
- Drysdale, Charles Robert.1
- Dublin. General Board of Health.1