Names
- Hoffman, Clare Eugene, 1875-1967.1
- Holcombe, Arthur N. (Arthur Norman), 1884-1977.1
- 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
- International Union, United Automobile, Aircraft and Agricultural Implement Workers of America.1
- Jenkins, Guy H.1
- Jones, J. Weldon (James Weldon), 1896-1
- Jones, Jesse H. (Jesse Holman), 1874-1956.1
- Judd, Dorothy Leonard.1
- Judd, Dorothy.1
- Ke-taw-kah.1