Taxonomy
- Legere, Ben (1)
- Lehrer, James (1)
- Letter carriers (10)
- Levin, Carl, 1934- (7)
- Levine, Philip, 1928- (1)
- Librarians (4)
- Licensing Examinations (Professions) (1)
- Lieberman, Myron, 1919- (1)
- Lighthill, Stephen (2)
- Lima, George S. (4)
- Lindsay, John V. (John Vliet) (10)
- Lindsay, John, 1947- (1)
- Little Milton (1)
- Little, Stan A. (3)
- Liuzzo, Viola, 1925-1965 (15)
- Livingston, John W., 1908-1997 (3)
- Lobbying (8)
- Local elections (5)
- Local transit (1)
- Lucas, Scott Wike, 1892-1968 (1)
- Lucy, William (124)
- Lunch Programs (1)
- Lurie, Harry L. (Harry Lawrence), 1892-1973 (1)
- Lyons, Mack (7)
- Mackenzie, David (1)
- MacNeil, Robert, 1931- (1)
- Macomb County (Mich.) (2)
- Madame Cadillac Dance Theater (1)
- Madar, Olga M. (8)
- Mahaffey, Maryanne (4)
- Maier, Henry W., 1918- (1)
- Mandela, Nelson, 1918-2013 (30)
- Mandela, Winnie (8)
- Manufacturers Bank (Detroit, Mich.) (1)
- March on Washington for Jobs and Freedom (1963 : Washington, D.C.) (35)
- Marec, Ronald (1)
- Marshall Plan (1)
- Marshall, F. Ray (1)
- Martin, Warren Homer, 1902-1968 (8)
- Marxism (27)
- Mason, Philip P. (Philip Parker), 1927- (3)
- Mass media and social service (1)
- Massell, Sam (1)
- Master Executive Council (1)
- Maternity leave (1)
- Mathematics -- Education (1)
- Mathematics Instruction (2)
- Mazey, Emil, 1913-1983 (22)
- Mazey, Ernest, 1919-1979 (5)
- McCarthy, Eugene J., 1916-2005 (2)