Names
- Historical Society of Michigan (1874-)1
- Hoffman, Clare Eugene, 1875-1967.1
- Hoffman, Paul G. (Paul Gray), 1891-1974.1
- Hogan, Henry M.1
- Hogan, Henry M., Jr.1
- Hoover, Herbert, 1874-1964.1
- Hoover, J. Edgar (John Edgar), 1895-1972.1
- Howard City Record (newspaper)1
- Huddleston, Clarence J.1
- Hulbert, Henry Schoolcraft, 1869-1959.1
- Hull, William, 1753-1825.1
- Huron Daily Tribune1
- Industrial Workers of the World.1
- Ingham County (Mich.). Emergency Welfare Relief Commission.1
- International Congress of Women (1915 : Hague, Netherlands)1
- Johansen, August E. (August Edgar), 1905-1995.1
- Johanson, August Edgar, 1905-1
- Johnson, Fred.1
- Jones, Edgar De Witt, 1876-1956.1
- Jones, J. Weldon (James Weldon), 1896-1