Name
- Foreign Office, 1782-19682
- Government of Bombay, Political Department, 1754-1934?2
- Government of India, Foreign and Political Department, 1783-19372
- Admiralty, 1708-19641
- Ahmed Vefyk, Pasha1
- Alison, Charles, diplomat, 1810-18721
- Austen, Benjamin, solicitor1
- Benso di Cavour, Camillo, Conte Sardinian statesman1
- Blackwood, Frederick Temple, 1st Marquess of Dufferin and Ava, diplomat, 1826-19021
- Bourdillon, Charles, barrister, correspondent of 'The Times' in Mexico1
- Brown, John, of York; of Add MS 389861
- Brown, Rawdon Lubbock, of Add MS 389871
- Bulwer, William Henry Lytton Earle, 1st Baron Dalling and Bulwer, politician and writer, 1801-18721
- Burgh, Ulick John, 1st Marquis of Burgh Clanricarde1
- Castellani, Alessandro, antiquary and jeweller, 1823-18831
- Cobden, Richard, of Add MS 387941
- Colonial Office, 1854-19661
- Commissione Delle Prede, Italy, Italian Prize Court, 19th century -20th century1
- Conestabile, Giovanni Carlo, Count, archaeologist1
- Consuls1