Former Owner
- John Henry Gurney Jr.1
- John Hinsdale Scheide2
- John M Cuthbert1
- John McRay1
- John Patteson1
- John R. Anderson & Co1
- John Roland Abbey1
- John Ruskin3
- John Sotheby1
- John Trotter Brockett1
- Joseph Barrois11
- Joseph E. Widener7
- Joseph François René de Kergariou1
- Joseph Pope1
- Joseph Whitney1
- Joseph-Félix Allard2
- Josephine Widener Wichfield2
- José Antonio Conde1
- Jules Bonhomme1
- Justin MacCarthy Reagh1