Former Owner
- Girolamo d'Adda2
- Giuseppe Bruschetti2
- Goldman, Yosef2
- Goodspeed's Book Shop2
- Guilielmus van Hamme2
- Hans Albrecht von Derschau2
- Harry C. Koenig2
- Harry Creswick2
- Harry G. Friedman2
- Henry Frederick, Prince of Wales2
- Henry Gee Barnard2
- Henry George Bohn2
- Henry Wyndham, 2nd Baron Leconfield2
- Henry Young and Sons2
- Herbert B. Nichols2
- Herbert Reichner2
- Hodgson & Co.2
- Homer D. Crotty2
- Horace de Landau2
- House of Colonna2