Name
- Codrington, Edward, Admiral GCB1
- Collier, J-, of London, merchant1
- Colquhoun, Archibald, Lord Advocate1
- Colquhoun, Patrick, London Police Magistrate1
- Cooke, John, JP for county Tipperary1
- Cooper, Astley Paston, surgeon to the king1
- Cope, Arabella Diana, wife (1790) of John Frederick Sackville, 3rd Duke of Dorset, and (1801) of Charles Whitworth, Baron Whitworth1
- Cotton, Charles, Admiral; of Add MS 382461
- Cox, William, Major; 6th Regt1
- Craig, Charles Alexander, of the Office of Works1
- Crawford, Robert, Major1
- Creagh, William Henry, son of B Creagh of Cork1
- Crew, Robert Henry, Sec Board of Ordnance1
- Cunningham, Isabella, widow of John, 15th Earl of Glencairn1
- D'Arcy, Robert, 4th Earl of Holdernesse, diplomat and politician, 1718-17781
- Dalrymple, Adolphus John, 2nd Baronet, army officer and politician, of High Mark, 1784-18661
- Davis, George, correspondent of the 1st Earl of Liverpool, fl 17611
- Davis, Richard Hart, merchant and politician, 1766-18421
- Dawes, Edwin, correspondent of the 2nd Earl of Liverpool, fl 18061
- Dawkins, William, correspondent of the 2nd Earl of Liverpool, fl 18171