Names
- Karpinski, Louis Charles, 1878-1956.1
- Katona, George, 1901-1
- Katona, George, 1901-1981.1
- Kelly, Harry F. (Harry Francis), 1895-1971.1
- Kelly, Howard A. (Howard Atwood), 1858-1943.1
- Kennedy, Charles Stuart, 1887-1966.1
- King, William Lyon Mackenzie, 1874-1950.1
- Kipke, Harry G., 1899-1972.1
- Kish, Leslie, 1910-1
- Knight, John Shively, 1894-1981.1
- Knudsen, William S., 1879-1948.1
- La Guardia, Fiorello H. (Fiorello Henry), 1882-1947.1
- Lamont, Robert Patterson, 1867-1948.1
- Lane, Alfred C. (Alfred Church), 1863-1
- Lane, Robert Porter, 1891-1953.1
- Lansing, John B.1
- Larue, George R. (George Roger), 1882-1
- Lauersdorf, R. (Robin)1
- Lewin, Kurt, 1890-1947.1
- Likert, Rensis, 1903-1