Former Owner
- Johann Heinrich von Speyr-Passavant1
- Johann Michael Schiller1
- Johannes Betrus Ravenoldus1
- Johannes Lethe1
- Johannes Wigg1
- John Alexander Stewart1
- John Alfred Wigan1
- John Bellingham Inglis1
- John Burns1
- John Butlar1
- John C. Jackson1
- John Camp Williams1
- John Couch Adams1
- John Edgar Ker1
- John Fenn1
- John Henry Nash1
- John Hope, 1st Marquess of Linlithgow1
- John Lee1
- John Roland Abbey1
- John Ruskin1