Former Owner
- Giuseppe Martini5
- Gordon Adamson1
- Guglielmo Libri Carucci dalla Sommaja2
- Guilielmus van Hamme2
- H. Bayle1
- H. P. Kraus (firm)2
- Hamon Styleman Le Strange1
- Hampton L. Carson5
- Hans P. Kraus1
- Harrison Wright1
- Harry Levinson1
- Harry Luke1
- Hazote, Elie1
- Henry Brudenell-Bruce, 5th Marquess of Ailesbury1
- Henry Charles Lea5
- Henry Clark Stewart1
- Henry Drury3
- Henry Huth3
- Henry Oppenheimer1
- Henry Pelham-Clinton, 4th Duke of Newcastle1