Former Owner
- Jean Joseph Sosthène de LaRoche Lacarelle1
- Jean-Baptiste Huzard1
- Jeannette Dwight Bliss1
- Joannes Angelus de Crema1
- John B. Stetson Jr.1
- John C. Jackson1
- John Fenn1
- John Henry Nash1
- John Roland Abbey1
- John Ruskin1
- John Shelton Lawrence1
- John Thomas Beer1
- Joseph Halle Schaffner1
- Joseph Pope1
- Juan Burgueño1
- Juan Rodriguez1
- Juan de Gayferos de Eguiraum1
- Juana I of Castile1
- Julian Burgueño1
- Justin MacCarthy Reagh1