Former Owner
- Henry Percy, 9th Earl of Northumberland2
- Henry Young and Sons2
- Herbert B. Nichols2
- Herbert Reichner2
- Hodgson & Co.2
- Homer D. Crotty2
- House of Colonna2
- House of Sforza2
- Hucks Gibbs, 1st Baron Aldenham2
- Ida M. Havens2
- Imre Hodossy2
- J. Martini2
- J. Meade Falkner2
- J. P. Gumbert2
- J. Techener2
- James & Mary Lee Tregaskis (Firm)2
- James Bowen2
- Jay Gould2
- Jean-Baptiste Denis Guyon de Sardière2
- Joaquín Gómez de la Cortina2