Former Owner
- George Templeton Strong1
- Georgius Ruch1
- Guglielmo Libri Carucci dalla Sommaja1
- H. P. Kraus (firm)1
- Harrison Wright1
- Henry Frederick, Prince of Wales1
- Howard Lehman Goodhart1
- Huysburg1
- James Halliwell-Phillipps1
- James K. Moffitt1
- Joachim Guerrinus de Montefegatesio1
- Johannes de Helb1
- John A. Murphy1
- John Anderson1
- John D. Stanitz1
- John Fletcher Hurst1
- John James Lewis1
- John Singer Sargent1
- Joseph May Spetzler1
- Kartause Erfurt1