Former Owner
- J. Paul Getty Museum1
- J. T. Payne1
- Jacobus de Muffoni1
- James K. Moffitt1
- James Tregaskis1
- Jesuit College of San Bartolomeo1
- Johan Gröf1
- Johann Heinrich van Ess1
- Johannes Betrus Ravenoldus1
- John Carter1
- John D. Stanitz1
- John Lee1
- Judith Lady Montefiore College1
- Karen L. Gould1
- Katherine Somerset Wyttenbach Fenwick1
- Lathrop Colgate Harper1
- Lawrence J. Schoenberg1
- Leo S. Olschki Editore1
- Levi, David, active 19th century1
- Marilyn Carbonell1