Former Owner
- Joannes Aloysius Brochman1
- Joannes Hainricus Ebron zu Wildenberg1
- Johannes Vivianus1
- Johannes Wigg1
- John Henry Ellis1
- John Hinsdale Scheide1
- John Jalkyn1
- John Josias Conybeare1
- John Milne Buckie1
- John Patteson1
- John Reiner1
- John Skerrind1
- John Stanley, 18th Earl of Derby1
- Josh Miller1
- Julius Bisno1
- Jérôme Bignon1
- K. B. Starkie1
- Katherine Somerset Wyttenbach Fenwick1
- Lathrop C. Harper, Inc.1
- Lathrop Colgate Harper1