Haworth, Paul Leland: America in Ferment. Bobbs-Merrill Co., Indianapolis, 1915.
Haynes, George E.: The Negro at Work in New York City Vol 49, No. 3, of Columbia Studies, 1912.
Helper, Hinton Rowan: The Impending Crisis of the South: How to Meet It. New York, 1857.
Hickok, Charles T.: The Negro in Ohio, 1802-1870. (Western Reserve thesis.) Cleveland, 1896.
Higginson, Thomas Wentworth: Army Life in a Black Regiment Boston, 1870. (Latest edition, Houghton, Mifflin Co., 1900.)
Hoffman, Frederick L.: Race Traits and Tendencies of the American Negro. American Economics Association Publications, XI, Nos. 1-3, 1896.
Hodge, Frederick W. (editor): Spanish Explorers in the Southern United States, 1528-1543 (in Original Narratives of Early American History), esp. The Narrative of Alvar Nuñez Cabeça de Vaca. Charles Scribner's Sons, New York, 1907.
Holland, Edwin C.: A Refutation of the Calumnies circulated against the Southern and Western States, respecting the institution and existence of slavery among them; to which is added a minute and particular account of the actual condition and state of their Negro Population, together with Historical Notices of all the Insurrections that have taken place since the settlement of the country. By a South Carolinian. Charleston, 1822.
Horsemanden, Daniel (Judge): A Journal of the Proceedings in the Detection of the Conspiracy Formed by Some White People, in conjunction with Negro and Other Slaves, for Burning the City of New York in America, and Murdering the Inhabitants. New York, 1744.
Hosmer, James K.: The History of the Louisiana Purchase. D. Appleton & Co., New York, 1902.