Former Owner
- David Pulsifer1
- David Swan1
- Davis & Orioli1
- Dean Putnam Lockwood1
- Deighton, Bell, & Company1
- Deva, Bālakṛṣṇa1
- Diego Clemencín1
- Diego Llorente1
- Diego de Arce y Reinoso1
- Diego de Ayala1
- Domenico Levera1
- Domenico Silvio Passionei1
- Domenico Toschi1
- Domenico Turazza1
- Donato II Silva1
- Donaueschingen court library1
- Dorothy Stahl Brady1
- Duncan Beresford-Jones1
- E. Silvestri1
- Earl of Chesterfield1