Names
- Hill, Norman Hingston, 1887-1971.2
- Hillman, Sidney, 1887-1946.1
- Hiss, Alger.2
- Historical Society of Michigan (1874-)1
- Hobbs, William Herbert, 1864-1952.1
- Hoffman, Clare Eugene, 1875-1967.1
- Holcombe, Arthur N. (Arthur Norman), 1884-1977.1
- Hoover, Herbert, 1874-1964.2
- Hoover, J. Edgar (John Edgar), 1895-1972.3
- Hopkins, Harry L. (Harry Lloyd), 1890-1946.1
- Hotzoff, Alexander.1
- Howe, Louis McHenry, 1871-1936.1
- Hughes, Charles Evans, 1862-1948.1
- Hull, Cordell, 1871-1955.1
- Hull, William, 1753-1825.1
- Humphrey, Hubert H. (Hubert Horatio), 1911-1978.1
- Hurley, Patrick J. (Patrick Jay), 1883-1963.1
- Ickes, Harold L. (Harold LeClair), 1874-1952.1
- Industrial Workers of the World.1
- International Congress of Women (1915 : Hague, Netherlands)1