Name
- Addington, Henry, 1st Viscount Sidmouth, Prime Minister, 1757-18441
- Adolphus Frederick, Duke of Cambridge, son of George III, 1774-18501
- African Institute1
- Aglio, Augustine, artist1
- Alcock, Harry, Mayor of Waterford, fl 18161
- Alexander, Alexander, claimant to the Earldom of Stirling, 1783-18591
- Alexander, Eugene S-, son of Alexander, self-styled Earl of Stirling1
- Alexander, John, of Milford, county Cork1
- Alexander, Nathanael, Bishop of Meath1
- Alleyne, Thomas, of Millbrook, county Tipperary1
- Allport, Josiah, Curate at Chippenham1
- Anderson, Charles, of Add MS 402531
- Angelo, Edward Anthony, Lieutenant-Colonel; KH1
- Annesley, George, 2nd Earl of Mount Norris1
- Annesley, William Richard, Viscount Glerawley; 3rd Earl Annesley 18241
- Arbuthnot, Charles, diplomat and politician, 1767-18501
- Arbuthnott, Hugh, Major-General; KCB 18621
- Arbuthnott, John, 8th Viscount Arbuthnott1
- Archer, Forster, Reverend; Inspector-General of Irish Prisons1
- Armstrong, William, West India merchant1