Former Owner
- Goodspeed's Book Shop2
- Gordon A. Block Junior2
- Grenville Kane2
- Hans P. Kraus2
- Harry Creswick2
- Henry Charles Lea2
- Henry Ellis Allen2
- Henry Frederick, Prince of Wales2
- Henry Gee Barnard2
- Henry George Bohn2
- Henry Young and Sons2
- Herbert Reichner2
- Hermann Suchier2
- Hodgson & Co.2
- Homer D. Crotty2
- House of Colonna2
- House of Sforza2
- Ida M. Havens2
- J. Martini2
- J. Techener2