Former Owner
- Jehan de Gaignières1
- Jivanji Jamshedji Modi1
- Jo. Otho1
- Joannes Angelus de Crema1
- Joannes Salzperg1
- Johan Meerman1
- Johann David Baier1
- Johann Heinrich von Speyr-Passavant1
- Johann Michael Schiller1
- Johannes Betrus Ravenoldus1
- Johannes Lethe1
- Johannes Wigg1
- John Alexander Stewart1
- John Bohn1
- John Butlar1
- John C. Jackson1
- John Camp Williams1
- John Church1
- John E. Burton1
- John Edgar Ker1