Former Owner
- Johan Gröf1
- Johannes zu Reitheim1
- John Alexander Stewart1
- John Carter1
- John Egylsfelld1
- John Henry Wrenn1
- John Ives1
- John Jarsey1
- John Kemp1
- John Topham1
- Joseph Haslewood1
- Kartause Erfurt1
- Katharinenkirche, Nuremberg1
- Kloster Rebdorf1
- Laurence Harman King-Harman1
- Leigh Baker1
- Lew David Feldman1
- Louis H. Silver1
- Luigi Celotti1
- Lundell Library1