Former Owner
- Joseph Marie Sormani1
- Joseph May Spetzler1
- Joseph Whitney1
- Josh Miller1
- Josiah H. Benton1
- José Antonio Conde1
- Jules Bonhomme1
- Julie Florence de Cossette1
- Julie de Busnel1
- Julius Hess1
- Justin MacCarthy Reagh1
- Jérôme Bignon1
- K-L1
- K. B. Starkie1
- Karl Anton, Prince of Hohenzollern1
- Karl Leopold Strauven1
- Kenneth Hyde1
- Kloster Kuringen1
- Kulturhistorisches Museum Magdeburg1
- L. C. Harper1