Former Owner
- George G. Napier1
- Georges d'Amboise1
- Giovanni Battista Giovio1
- Giovanni Battista Rota1
- Giovanni Perissinotti1
- Guglielmo Libri Carucci dalla Sommaja1
- Henry Danby Seymour1
- Henry Drury1
- Henry Francis Lyte1
- Henry Harvey Frost1
- Henry Percy, 9th Earl of Northumberland1
- Henry Spelman1
- Herbert B. Nichols1
- Herschel V. Jones1
- Horace de Landau1
- Hákon Snæbjörnson1
- I. I. Zur-Mühlen1
- Ignatius Molitor1
- Isaac Hollister Hall1
- James C. Byrne1