Former Owner
- Ashton Rollins Sanborn1
- Assemani family1
- Athelstan Riley1
- Audry Wilkens1
- August Merz1
- Augustinus de Cagnolis1
- Austin, Jehan1
- Avraham Yedidiah Levi1
- Avraham ben Yahya1
- Aytmish al-Bajasī, Amīr, -14001
- Aḥmad Rifʻat ibn al-Ḥājj Muḥammad Fākhir Z̤amāqavī1
- Aḥmad ibn Mubārak Luṭf Allāh1
- Aḥmad ibn Muṣṭafá1
- Aḥmad ibn ʻUmar Afandī1
- B.C. Barker-Benfield1
- B.L. Riese1
- B.S. Cron1
- Baldasarre Boncompagni1
- Baptist Union Theological Seminary1
- Barbara Hackenmayrin1