Former Owner
- Janārdana Koṇḍadeva Gāḍagīla1
- Jaʻfar ʻAlī1
- Jean E. Austin1
- Jean Jules Olinger1
- Joannes Salzperg1
- Johann David Baier1
- Johann Heinrich von Speyr-Passavant1
- Johann Michael Schiller1
- Johannes Wigg1
- John Alexander Stewart1
- John Camp Williams1
- John Edgar Ker1
- John Henry Gurney Jr.1
- John Ives1
- John Lee1
- John Patteson1
- John R. Anderson & Co1
- John Taylor1
- John Thomas Beer1
- Joseph Anton Koch1