- Hamilton, John Brown, 1847-1898, author1
- Hammond, William A. (William Alexander), 1828-19002
- Henry, Guy Vernor, 1839-1899 compiler1
- Horsford, Eben Norton, 1818-18931
- Horsford, Eben Norton, 1818-1893, author1
- Hudson, E. Darwin (Erasmus Darwin), 1843-18871