Former Owner
- Jacob Dackomb1
- James & Mary Lee Tregaskis (Firm)1
- James Clerke1
- James F. Drake1
- James Ley, 1st Earl of Marlborough1
- James Rathwell Page1
- James Sotheby1
- Jeremy C. Jackson1
- Johannes Lethe1
- John A. Savage Jr.1
- John Alexander Stewart1
- John Arndell (fl. 1498)1
- John Brand1
- John Bulkeley1
- John Butlar1
- John Campbell, 1st Marquess of Breadalbane1
- John Church1
- John Dare1
- John Dozier Gordan1
- John Egerton, 1st Earl of Bridgewater1