Former Owner
- Homer D. Crotty2
- House of Sforza2
- Ida M. Havens2
- J. Martini2
- J. Paul Getty Museum2
- J. Techener2
- James & Mary Lee Tregaskis (Firm)2
- James Bowen2
- Jay Gould2
- Johan Meerman2
- John B. Stetson Jr.2
- John Boyd Thacher I2
- John III of Portugal2
- John Lee2
- John Roland Abbey2
- John Thomas Beer2
- Josephine Widener Wichfield2
- Karl F. Morrison2
- Kenneth J. "Bud" Jennings2
- Kloster Rebdorf2