- Hill, A. J. (Alfred James), 1833-18951
- Hill, Samuel, approximately 1766-18041
- Hitchcock, Edward, 1793-18641
- Hobbs, H.C1
- Hobs, Edwin1
- Hoeing, J. B. (Joseph Bernard), 1855-1
- Holm, Daniel K.1
- Holmes, Payte & Buechner1
- Hondius, Hendrik, 1597-16511
- Horsburgh, James1
- Hotchkiss, William Otis, 1878-19541
- Hudson Company (Minneapolis, Minn.)1
- Hudson Publishing Co. (Minneapolis, Minn.)1
- Huebinger, M. (Melchior)1
- Humphreys, A. A. (Andrew Atkinson), 1810-18831
- Hunt & Eaton.1
- Hutawa, Julius1
- Hügel Freiherr von, Karl Alexander, 1795 or 1796-1870.1
- Ibañez e Ibañez de Ibero, Carlos, 1825-18911
- Illinois Commerce Commission1