Former Owner
- John B. Stetson Jr.1
- John Burns1
- John C. Jackson1
- John Eliot Hodgkin1
- John Fenn1
- John Henry Nash1
- John Payne Collier1
- John Roland Abbey1
- John Ruskin1
- John Shelton Lawrence1
- John Sotheby1
- John Towneley1
- John Ward, 1st Earl of Dudley1
- Jorge de Ataíde1
- Joseph Ernst Koch-Sternfeld1
- Joseph Franz Gross1
- Joseph Halle Schaffner1
- Joseph Neeld1
- Joseph Pope1
- Juan Antonio de la Reguera1