Name
- Abbot, Charles, 1st Baron Colchester, Speaker of the House of Commons, 1757-18299
- Abbot, Elizabeth, wife of Charles 1st Baron Colchester2
- Abbot, J- Farr1
- Abercromby, James, MP for Midhurst1
- Acton, John, of Add MS 335401
- Acton, W- T-1
- Adam, Robert, of Add MS 335411
- Addington, Henry, 1st Viscount Sidmouth, Prime Minister, 1757-18443
- Ainslie, Robert, 1st Baronet, diplomat and numismatist, 1730-18121
- Alcala, J-1
- Alexander I, of Russia2
- Alexander, J-, junior1
- Alexander, James Wadman1
- Alexander, John, of Add MS 335371
- Allen, William, Quaker philanthropist3
- Apazen, D-, Comte1
- Arbuthnot, Charles, diplomat and politician, 1767-18501
- Armstrong, John, of Add MS 335461
- Atwood, George, Mathematician, Private Secretary to William Pitt2
- Audit Office1