Former Owner
- Harry G. Friedman2
- Harry Levinson2
- Henry Ellis Allen2
- Henry Frederick, Prince of Wales2
- Henry George Bohn2
- Henry Wyndham, 2nd Baron Leconfield2
- Henry Young and Sons2
- Herbert Reichner2
- Hodgson & Co.2
- Homer D. Crotty2
- House of Colonna2
- House of Sforza2
- Hugo Philipp Waldbott-Bassenheim2
- Ida M. Havens2
- Imre Hodossy2
- J. Martini2
- J. Meade Falkner2
- J. Techener2
- James & Mary Lee Tregaskis (Firm)2
- James C. Byrne2