Former Owner
- John Topham1
- John Towneley2
- John Trotter Brockett1
- John Walker1
- John Ward, 1st Earl of Dudley1
- John West, 1st Earl De La Warr1
- John William Bradley1
- John William Harshberger1
- John Willis1
- John Wright2
- John de Vere, 12th Earl of Oxford1
- Jonathan Peckover1
- Josceline Bagot1
- Joseph Baer & Co.1
- Joseph Barrois28
- Joseph E. Widener8
- Joseph Ernst Koch-Sternfeld1
- Joseph Görres1
- Joseph H. Haines1
- Joseph Jekyll1