Former Owner
- John Frederick Lewis49
- John Henry Wrenn1
- John Herbst1
- John Hope, 1st Marquess of Linlithgow2
- John M Cuthbert1
- John Mason Neale1
- John Reiner2
- John Ruskin2
- John Sotheby1
- John Thomas Beer1
- John Vyfyan1
- John William Bradley1
- Joseph Barrois12
- Joseph E. Widener7
- Joseph Pope1
- Joseph Whitney1
- Joseph-Félix Allard2
- Josephine Widener Wichfield2
- Julie de Busnel1
- Julien Peridier1