Former Owner
- Simon Gratz2
- Susan B. Minns2
- William Bragge2
- William Keeney Bixby2
- Abbey of Saint Gall1
- Adriana R. Salem1
- Adán Inquaci1
- Albert M. Patrick1
- Albert Parker, 3rd Earl of Morley1
- Alexander Hamilton, 10th Duke of Hamilton1
- Alfredo Chavero1
- Alonso Mendez de Parada1
- Amīr Bahādur Jank ʻAẓim Allāh Khān1
- Andrés Ordoñez1
- Angèle Louise Maggi Spaulding1
- Anne Claude Philippe, Comte de Caylus1
- Anthelme-Michel-Laurent de Migieu, marquis de Savigny1
- Antonio Laserna1
- Antonio Saverio Gentili1
- Antonio Ubaldini1