Names
- Hoffman, Clare Eugene, 1875-1967.2
- Hough, Emerson, 1857-1923.2
- Hubbard, Lucius L. (Lucius Lee), 1849-1933.2
- Humphrey, Watts S.2
- Hunsaker, Walter Jerome, 1857-1939.2
- Hurley, Patrick J. (Patrick Jay), 1883-1963.2
- Industrial Workers of the World.2
- Kelley, Patrick Henry, 1867-1925.2
- Kellogg family.2
- Kellogg, Frank B. (Frank Billings), 1856-1937.2
- Kellogg, John Harvey, 1852-19432
- Kemp, Edward Gearing, 1887-1962.2
- Kennedy, Joseph P. (Joseph Patrick), 1888-1969.2
- Knudsen, William S., 1879-1948.2
- Koch, Theodore Wesley, 1871-1941.2
- Krock, Arthur, 1886-1974.2
- Landon, Alfred M. (Alfred Mossman), 1887-1987.2
- Lasker, Albert Davis, 1880-1952.2
- Lawrence, David, 1888-2
- Lawrence, Howard Cyrus, 1890-1961.2