Names
- Mansfield, Jera Morton, 1823-1896.1
- Mansfield, John Worthington, 1849-1933.1
- Mansfield, Josie.1
- Mansfield, Mary Gertrude, 1854-1922.1
- Mansfield, Mary Hopkinson, 1827-1883.1
- Mansfield, Walter Damon, 1860-1926.1
- Marshall Field's (Department store)1
- McCarron, Clara.1
- McCarthy, Eugene J., 1916-2005.1
- McClellan, George B. (George Brinton), 1826-1885.1
- McClellan, R. Guy (Rolander Guy)1
- McDougal, John, 1818-1866.1
- Menken, Adah Isaacs, 1835-1868 (Spirit)1
- Michigan College of Mines.1
- Michigan daily.1
- Miller, Floy, 1872-1947.1
- Modern Spiritualists Society.1
- Montez, Lola, 1818-1861.1
- Morse, J. J. (James Johnson), 1849-.1
- Mosebay, Lewis G., 1865-1935.1