Former Owner
- J. A. Dortmond1
- J. Martini1
- Jacob Suter1
- James Halliwell-Phillipps1
- James K. Moffitt1
- Johann Heinrich van Ess1
- John Henry Gurney Jr.1
- John Hinsdale Scheide1
- John Patteson1
- Joseph Anton Koch1
- Julius Heinrich Jeidels1
- Kartause Erfurt1
- Kloster Bredelar1
- Lathrop C. Harper, Inc.1
- Libreria la Bibliofila1
- Louis Charles Karpinski1
- Marie Cleophe de Sollario1
- Marie de Albano1
- Marienstiftsgymnasium1
- Mortimer Frank1