Name
- Caraccioli, Domenico, Marquis, Neapolitan Ambassador in London1
- Cathcart, Charles Schaw, 9th Baron Cathcart, army officer and ambassador, 1721-17761
- Chase, Richard, Reverend1
- Clarke, Gedney, Collector of Customs at Barbados1
- Clement, Robert1
- Clermont, of Add MS 383041
- Clive, G-1
- Clive, Robert, 1st Baronet Clive of Plassey, administrator and army officer, 1725-1774, http://isni.org/isni/000000...1
- Colebrooke, George, 2nd Baronet, banker, chairman of the East India Company, 1729-18091
- Collard, Secretary to Count J W van Welderen1
- Collier, George, Captain; Vice-Admiral 17941
- Conway, of Add MS 383041
- Cornewall, Frederick, Captain; RN, M P for Montgomery1
- Cosby, Dudley Alexander Sydney, private sec to Lord Halifax1
- Courtenay, William, Captain; Commissary-General for Minorca1
- Courteville, Ralph1
- Cracraft, William, attorney1
- Cressener, George, diplomatist1
- Cunliffe, Ellis, 1st Baronet, MP for Liverpool1
- Currie, of Add MS 383041