Former Owner
- John Barrymore1
- John Dare1
- John Fenn1
- John Frederick Lewis1
- John Henry Ellis1
- John Henry Wrenn1
- John Hinsdale Scheide1
- John Morley1
- John Pery1
- John Vyfyan1
- John William Burns1
- Joseph Halle Schaffner1
- Joseph May Spetzler1
- K-L1
- Kloster Rebdorf1
- Lawrence J. Schoenberg1
- Lehn of Denmark1
- Leicester Harmsworth1
- Lew David Feldman1
- Long Island Historical Society, Maine1