Former Owner
- Girolamo d'Adda1
- Giuseppe Antonelli1
- Giuseppe Martini8
- Godajośī Dhātoṇḍa1
- Godefroy Honore1
- Gonthaut-Saint-Blanchard family1
- Gordon Adamson1
- Guglielmo Libri Carucci dalla Sommaja3
- Gusztáv Emich1
- H. P. Kraus (firm)1
- Harimiśra1
- Harold Baillie Weaver1
- Harrison Gray Otis1
- Harrison Horblit1
- Harry G. Friedman1
- Harry Luke1
- Heinrich Eisemann1
- Heinrich Neubronner1
- Helen Rose Hull1
- Hellmut Albert Feisenberger1