Former Owner
- David Werner Amram1
- Dean Putnam Lockwood1
- Diego de Ayala1
- Dionysiĭ Vasilevich1
- Donaueschingen court library1
- Dorothy Stahl Brady1
- Dropsie College for Hebrew and Cognate Learning16
- Duncan Beresford-Jones1
- E.B. Krumbhaar4
- Eberhard Adolph von Muggenthal1
- Edmund Newman1
- Edward Cheney1
- Edward Samuel Dewick1
- Edward Syddell1
- Edward T. Ross1
- Edwin Dloss1
- Edwin H. Fetterolf1
- Edwin Pears1
- Ernest Stroehlin1
- Ernst Ludwig von Leutsch1