Name
- Congreve, Thomas, father of Richard Congreve1
- Conington, J, of Oxford1
- Cordeiro, Montenegro, of Rio de Janeiro1
- Cotton, Henry John Stedman, Knight, civil servant in India and politician, 1845-19151
- Couché, Charles, French Positivist1
- Crabb, Herbert E., of Hampstead1
- Croly, Jennie Cunningham, of New York1
- Crompton, Charles John, Justice of the Queen's Bench1
- Delbet, E, correspondent of Richard Congreve, fl 1888-18891
- Demant, T, correspondent of Richard Congreve, fl 1798-17991
- Dubuisson, Alfred, of Meudon, correspondent of Richard Congreve, fl 18931
- Dubuisson, Paul, of Paris, correspondent of Richard Congreve, fl 1876-18781
- Edger, Ebenezer Rust, brother of Henry Edger, positivist; correspondent of Richard Congreve, positivist, 1829-18981
- Ellis, Henry, of the Customs1
- Farinelli, A., correspondent of Richard Congreve, fl 18811
- Ferchand, E, of Langoiran, fl 18791
- Finance, Isidore, housepainter, of Paris, 1848-19181
- Fordyce, C., of Howrah, Bengal1
- Foucart, B., of Valenciennes1
- Geddes, James Cruickshank, colonial civil servant, fl 1870-18801