- Grafco1
- H. K. Mulford Co., Philadelphia1
- H.G. Kern, Philadelphia1
- Haas & Peale1
- Haas, Philip, fl. 1837-18631
- Hall, Arthur G.1
- Hall, Joseph, photographer.1
- Hanger1
- Hechler, E. H.1
- Henry Walpole and Company1
- Hill-Rom/Support Systems International1
- Hillers, John K., 1843-1925, photographer.1
- Hirschmann, Joseph Mordecai, 1898-19541
- Hood, Charles I.1
- Howard Association1
- Hubbard, J.C.,/C.R. Bard, Inc. Glen Falls, New York1
- Hunley's Drug Store, King Street Charleston, SC1
- Hunts Remedy Co.1
- Hurd, Lee M. (Lee Maidment) 1873-19451
- Imp.1