Names
- Hunt, James B., 1799-1857.1
- Hurja, Emil, 1892-1
- Hutchins, Harry B. (Harry Burns), 1847-1930.1
- Industrial Workers of the World.1
- Ingersoll, John N., 1817-1881.1
- International Congress of Women (1915 : Hague, Netherlands)1
- International Union, United Automobile, Aircraft and Agricultural Implement Workers of America.1
- Isle Royale Mining Company.1
- Ives, Irving McNeil, 1896-1962.1
- Jackson, Calvin C., 1814-1883.1
- Jackson, Lansing and Saginaw Railroad Company.1
- Johansen, August E. (August Edgar), 1905-1995.1
- Johnston family.1
- Johnston, George, 1796-1861.1
- Johnston, George.1
- Johnston, John McDouall, 1816-1895.1
- Johnston, John, 1762-1828.1
- Joliet, Louis, 1645-1700.1
- Jones, Edgar De Witt, 1876-1956.1
- Jones, George Wallace, 1804-1896.1