Former Owner
- Anne Jesson1
- Annie L. Wiggins1
- Anthony Bustard1
- Antiquarian Books of Boston1
- Antoine Joseph Rérolle1
- Antoine Lagnier1
- Antoine de Buz1
- Antoni Jerzy Apponyi1
- Antonio Dominico Restis1
- Antonio Lauro1
- Antonio Medin1
- Antonio de Bonius1
- Antonio di Matteo di Giovanni Foresi da Bibbiena1
- Antonius Mensing1
- Arnold Jansen op de Haar1
- Artemesia Piccolomini1
- Arthur Annesley, 1st Earl of Anglesey1
- Arthur Brölemann1
- Arthur Kay1
- Arthur Liddell, 5th Baron Ravensworth1