Former Owner
- Johannes Wesbach1
- Johannes, de Sancto Nabore1
- John Alfred Wigan1
- John Bellingham Inglis1
- John Couch Adams1
- John D. Denman1
- John Gribbel1
- John Harrison-Broadley1
- John Henry Backhouse1
- John Hirst1
- John Hope, 1st Marquess of Linlithgow1
- John Ingle Dredge1
- John Jalkyn1
- John Towneley1
- John Trotter Brockett1
- Jonathan Peckover1
- Joseph Barrois1
- Joseph François René de Kergariou1
- Joseph Görres1
- Joseph L. Lilly1