Name
- Arbuthnott, Hugh, Major-General; KCB 18621
- Arbuthnott, John, 8th Viscount Arbuthnott1
- Archer, Forster, Reverend; Inspector-General of Irish Prisons1
- Armstrong, William, West India merchant1
- Arris, Thomas1
- Arundell, Richard, MP for Knaresborough (1720-58), one of the guardians of the 10th Earl of Pembroke1
- AshIey, Henry, attorney1
- Ashby, Edward, of Add MS 361961
- Ashe, Isaac, Rector of Tamlaght, county Londonderry1
- Ashley, John1
- Astle, Thomas, archivist and collector of books and manuscripts, 1735-18031
- Astley, John, 2nd Baronet, MP for. county Shropshire1
- Atterbury, Francis, Bishop of Rochester, politician, and Jacobite conspirator, 1663-17321
- Atwell, Matthew, bailiff in Woodstock Park1
- Avery, Benjamin, physician, d 17641
- Ayars, William, gardener at Blenheim Palace; former apprentice to T Bobart1
- Aylmer, Andrew, 2nd Baronet, 1613-16711
- Aylmer, Matthew, 5th Baron Aylmer, formerly Aylmer; army officer and colonial administrator, 1775-18501
- Babbage, Charles, mathematician and computer pioneer, 1791-18711
- Backhouse, John, civil servant, 1784-18451