Names
- Lippitt and Associates.1
- Lippitt, Ronald.1
- Little, Clarence C. (Clarence Cook), 1888-1
- Lloyd, Alfred Henry, 1864-19271
- Maier, Norman R. F. (Norman Raymond Frederick), 1900-1977.1
- Maier, Norman Raymond Frederick, 1900-1
- Massie, Thalia Fortescue, 1910-1963.1
- Mayman, Martin.1
- McKeachie, Wilbert James, 1921-1
- Menninger Clinic.1
- Menninger, Karl A. (Karl Augustus), 1893-1990.1
- Meyer, Adolph, 1866-1950.1
- Miller, James Grier.1
- Munsterberg, Hugo, 1863-1916.1
- Murchison, Carl, 1887-1961.1
- Münsterberg, Hugo, 1863-1916.1
- NTL Institute for Applied Behavior Science.1
- Newcomb, Theodore Mead, 1903-19841
- Newcomb, Theodore Mead, 1903-1984.1
- Olson family.1