Former Owner
- Jacob Henry Burn1
- Jacob Riegel1
- Jay Gould1
- Jean-Baptiste Huzard1
- Jesuit College of San Bartolomeo1
- John C. Jackson1
- John Camp Williams1
- John D. Stanitz1
- John Lee1
- Judith Lady Montefiore College1
- Julia Burgess1
- Katherine Somerset Wyttenbach Fenwick1
- Lathrop C. Harper, Inc.1
- Lathrop Colgate Harper1
- Leo Olschki1
- Lionardo di Paolo Adimari1
- Ludwig Rosenthal's Antiquariaat1
- Luigi Celotti1
- Luigi Cora1
- M. Favia del Core1