Former Owner
- Jo. Otho1
- Joachim, Baron von Windhag1
- Joannes Angelus de Crema1
- Joannes Salzperg1
- Joaquín García Icazbalceta3
- Johan Gröf1
- Johan Meerman1
- Johann Egolph1
- Johann Heinrich von Speyr-Passavant1
- Johann von Firmian1
- Johannes Betrus Ravenoldus1
- John Alexander Stewart1
- John B. Stetson Jr.4
- John Boykett Jarman2
- John Burns1
- John C. Jackson1
- John Cochran1
- John D. Stanitz4
- John Eliot Hodgkin1
- John Fenn1