Former Owner
- Arthur M. Elliz1
- Arthur Thomas Bannister1
- Arthur Vershbow2
- Arthur de l'Isle du Dréneuc1
- Asahel Grant1
- Ashridge Priory4
- Ashton Lever1
- Ashton Rollins Sanborn1
- Assemani family1
- Athelstan Riley1
- Audry Wilkens1
- Aulne Abbey3
- Austin, Jehan1
- B. Goussil1
- B.C. Barker-Benfield1
- B.L. Riese1
- B.S. Cron1
- Baldasarre Boncompagni1
- Baldassarre Boncompagni5
- Ball Collection2