Former Owner
- Jean Felix Dénie1
- Jean de Goix1
- Jeanne de Goix1
- Johann Heinrich van Ess1
- John A. Savage Jr.1
- John Barrymore1
- John Dare1
- John Egerton, 1st Earl of Bridgewater1
- John Egerton, 2nd Earl of Bridgewater1
- John Egerton, 3rd Earl of Bridgewater1
- John Henry Nash1
- John Henry Wrenn1
- John Hinely1
- John William Burns1
- John William Harshberger1
- John de Vere, 12th Earl of Oxford1
- Joseph Pope1
- Juan de Gayferos de Eguiraum1
- Julie Florence de Cossette1
- Kenneth X. Robbins1