- Hart, John Fraser2
- Hartzell, Glenn W.2
- Hawkins, Geo. T.2
- Hayden, F. V. (Ferdinand Vandeveer), 1829-18872
- Health Department2
- Heater, Nicole2
- Hefel, Toney C.2
- Henn, Williams & Co.2
- Henn, Williams and Co.2
- Henneberger, Kaspar2
- Heutmaker, J.F.2
- Higgins & Co.2
- Higgins, Sylvester W.2
- Hill, S. W. (Samuel Worth), 1815-18892
- Hinton, John Howard, 1791-18732
- Hitchcock, Edward, 1793-18642
- Hoempler, Carlos E. C2
- Houghton, Douglass, 1809-18452
- Housing and Home Finance Agency2
- Hubbard, Bela, 1814-18962