Creator
- Hill, Walter George1
- Hodder and Stoughton1
- Hogerton, John F.1
- Holmes, F. M. (Frederic Morell), 1851-1
- Hooker Chemical Corporation1
- Hopkins, George M. (George Milton), 1842-19021
- Howe, Harrison Estell, 1881-19421
- Hughes, Regina Olson1
- Hunt & Eaton1
- Hunt, Caroline Louisa, 1865-19272
- Hurst, George H. (George Henry)2
- Industrial Research Service1
- Interessengemeinschaft Farbenindustrie Aktiengesellschaft2
- J. & A. Churchill1
- J. B. Colt & Co.1
- J.B. Lippincott & Co.2
- J.B. Lippincott Company1
- J.R. Geigy A.G.2
- J.S. Cushing & Co.1
- Jackson, Leila1