Former Owner
- J. C. Inglis1
- J. E. Schulte1
- Jacob Suter1
- James Elwin Millard1
- James Halliwell-Phillipps1
- James Lyell1
- James Russell Lowell1
- Jean Jules Olinger1
- Joachim Guerrinus de Montefegatesio1
- Joachim Windhag1
- Johann Egolph1
- Johannes Abezier1
- Johannes de Helb1
- Johem Spiess1
- John A. Murphy1
- John Fletcher Hurst1
- John Harvey Treat1
- John Henry Ellis1
- John Hinsdale Scheide1
- John Read Dore1