Former Owner
- James Lyell2
- James R. Herbert Boone1
- James Rathwell Page1
- James Sotheby1
- James Turle1
- James West1
- Jaʻfar ʻAlī1
- Jean Davray1
- Jean E. Austin1
- Jean II de Croÿ1
- Jean Joseph Sosthène de LaRoche Lacarelle1
- Jean Leclerc1
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Jivanji Jamshedji Modi1
- Joannes Hainricus Ebron zu Wildenberg1
- Joaquín García Icazbalceta1
- Johann Heinrich van Ess6
- John A. Savage Jr.1
- John Bigham, 1st Viscount Mersey1
- John Boyd Thacher I2