- Clobery, R. Glynn1
- Cobb, Frederic1
- Colby, Dixon1
- Collier, Charles1
- Combe, Charles, 1743-18171
- Conant, William M.1
- Cooper, William1
- Cosgrave, E. MacDowel (Ephraim MacDowel)1
- Couper, John1
- Courtenay, John1
- Cowan, John1
- Crookshanks, Gavin1
- Cullen, M. B.1
- Cuming, William, 1769-18521
- Cunninghame, Alexander1
- Curtin, Roland G. (Roland Gideon), 1839-19131
- Darwin, William Erasmus1
- Davenport, Kenneth, 1913-1
- Davis, Charles1
- Dawson, T.1
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