Name
- Arundell, Richard, MP for Knaresborough (1720-58), one of the guardians of the 10th Earl of Pembroke1
- Ascham, Roger, author and royal tutor, 1515-15681
- Ashburnham, George, 3rd Earl of Ashburnham, 1760-18301
- Aston, Robert, of Add MS 358321
- Aston, Walter, 1st Lord Aston of Forfar, courtier and diplomat, 1584-16391
- Atkinson, W, clergyman, fl 17881
- Attems, Franz Ludwig, Count, Canon1
- Aucher, H-1
- Ayala, Juan, of Add MS 358401
- Aycrigg, Benjamin1
- Aylmer, Andrew, 2nd Baronet, 1613-16711
- Aylmer, Henry, 2nd Baron Aylmer, politician, d 17541
- Aynscombe, Lillie Smith1
- Bagge, Francis, correspondent of the 3rd Lord Hardwicke, fl late 18th century1
- Baily, Giles, correspondent of 1st Lord Hardwicke, fl 17541
- Baion, Bartholomew, Spanish sailor, late 16th century1
- Baldwin, Joseph, agent general to Lord Hardwicke, fl 1774-17961
- Balguy, Thomas, clergyman, 1716-17951
- Ballingall, David James, Royal Marines officer; correspondent of 4th Lord Hardwicke, fl 18521
- Bank of England, 1694-1