Former Owner
- George F. Leighton1
- George Venables-Vernon, 5th Baron Vernon1
- Georges Gendreau1
- Giuseppe Martini1
- Groenendael Priory1
- Guglielmo Libri Carucci dalla Sommaja1
- Harry Glemby1
- Hazote, Elie1
- Helmut Beck1
- Henry William Poor1
- Jacques Annibal Claret de La Tourrette1
- James Dickson Clark, active Brooklyn in 1860.1
- James H. Stewart1
- James Laurie1
- James Lyell1
- Joannes Angelus de Crema1
- Johann Heinrich van Ess1
- John Rolls, 1st Baron Llangattock1
- John William Harshberger1
- Justin MacCarthy Reagh1