Former Owner
- Jean Felix Dénie1
- Jean Hersmulle Duport18
- Jean de Goix1
- Jeanne Govro1
- Jeanne de Goix1
- Jehanne Seigneau1
- Joachim Guerrinus de Montefegatesio1
- Joannes Hainricus Ebron zu Wildenberg1
- Joannes Salzperg1
- Johann Heinrich van Ess1
- Johannes Wigg1
- John C. Jackson1
- John Harvey Treat1
- John Henry Ellis2
- John Roland Abbey1
- John Rolls, 1st Baron Llangattock3
- John Ruskin1
- John William Harshberger1
- Joseph François René de Kergariou1
- Joseph Pope1