Former Owner
- James Tanis1
- Jean Bondieu1
- Jean Joseph Sosthène de LaRoche Lacarelle1
- Joachim Guerrinus de Montefegatesio1
- Johan Meerman1
- Johann Heinrich van Ess1
- Johannes Betrus Ravenoldus1
- Johannes Cuno1
- Johannes, de Sancto Nabore1
- John Alfred Wigan1
- John B. Stetson Jr.1
- John Bellingham Inglis1
- John Couch Adams1
- John Eliot Hodgkin1
- John F. Fleming1
- John Gribbel1
- John Harrison-Broadley1
- John Hindley1
- John Hirst1
- John Hope, 1st Marquess of Linlithgow1