Former Owner
- J. T. Payne1
- J. Techener1
- Jacob Suter1
- James F. Drake1
- James Halliwell-Phillipps1
- Jeanne Govro1
- Johan Laborya de Mossach1
- Johann Heinrich van Ess1
- John Bolton1
- John Harvey Treat1
- John James Lewis1
- John Thomas Beer1
- Joseph Anton Koch1
- Lawrence J. Schoenberg1
- Leonardo Loredan1
- Loftus Bland1
- Luigi Arrigoni1
- Marchese Linterno1
- Margaret Anna Hazard1
- Margaret Barclay Wilson1