Former Owner
- James Halliwell-Phillipps1
- James R. Herbert Boone1
- James Turle1
- Jean Baptiste Verdussen1
- Jean Budé1
- Jean Marie Michel Gasparoli1
- Jeanne Françoise Maclovie de Carman1
- Jeanne Govro1
- Jesuit College of San Bartolomeo1
- Joannes Hainricus Ebron zu Wildenberg1
- John A. Savage Jr.1
- John Bigham, 1st Viscount Mersey1
- John Bulkeley1
- John D. McKenna1
- John F. Fleming1
- John Hope, 1st Marquess of Linlithgow1
- John M Cuthbert1
- John McRay1
- John Morgan1
- John Ruskin1