Former Owner
- John de Vere, 12th Earl of Oxford1
- Jonathan Peckover1
- Josceline Bagot1
- Joseph Baer & Co.1
- Joseph Barrois22
- Joseph E. Widener8
- Joseph François René de Kergariou1
- Joseph Görres1
- Joseph Halle Schaffner1
- Joseph Jekyll1
- Joseph L. Lilly1
- Joseph Marie Sormani1
- Joseph May Spetzler1
- Joseph Pope3
- Joseph Whitney1
- Joseph-Félix Allard3
- Josephine Widener Wichfield2
- Josh Miller1
- Josiah H. Benton1
- José Antonio Conde1