Former Owner
- Jehanne Seigneau1
- Joaquín Gómez de la Cortina2
- Johan Meerman1
- Johann Egolph1
- Johann von Firmian1
- Johannes Cuno1
- Johannes Wesbach1
- Johannes, de Sancto Nabore1
- John Alfred Wigan1
- John B. Stetson Jr.6
- John Bellingham Inglis1
- John Burns1
- John Couch Adams1
- John D. Denman1
- John Eliot Hodgkin3
- John Gribbel1
- John Harrison-Broadley1
- John Harvey Treat3
- John Haskell Shedd1
- John Henry Backhouse1