Former Owner
- Jean E. Austin1
- Jean Jules Olinger1
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Jean-Frédéric Waldeck1
- Joachim Windhag1
- Johann David Baier1
- Johann Heinrich von Speyr-Passavant1
- Johannes Wigg1
- Johannes de Helb1
- Johannes zu Reitheim1
- Johem Spiess1
- John A. Murphy1
- John Brand1
- John Camp Williams1
- John Cochran1
- John Dozier Gordan1
- John E. Burton1
- John Egerton, 1st Earl of Bridgewater1
- John Egylsfelld1
- John Fletcher Hurst1