Former Owner
- Henry Willett1
- Henry William Poor1
- Henry Yates Thompson1
- Hugo von Walderdorff1
- Huysburg1
- James Halliwell-Phillipps1
- James K. Moffitt1
- James Tregaskis1
- Jan Six VII1
- Johannes Abezier1
- Johannes Wigg1
- Johannes de Helb1
- Johem Spiess1
- John A. Murphy1
- John Anderson1
- John D. Stanitz1
- John Eliot Hodgkin1
- John Fletcher Hurst1
- John Read Dore1
- John Savile1