Former Owner
- Enluminures8
- Enoch of Ascoli1
- Enrico Cernuschi2
- Entered the library between 1877 and 1900 as suggested by the hyphenated form of the city name in the library stamp on f. 1 as "The College of the City of New-York."1
- Enyego d'Àvalos1
- Ercole Silva1
- Eric Hyde Lord Sexton1
- Eric J. Johnson12
- Eric von Rosen1
- Erich Junkelmann2
- Erik von Scherling3
- Ernest Baker1
- Ernest Stroehlin1
- Ernst Christian Moser1
- Ernst F. Detterer2
- Ernst Ludwig von Leutsch1
- Ernst Philip Goldschmidt1
- Ernst Schultze1
- Ernst Schulz2
- Ernst Weil1