Names
- McDougal, John, 1818-1866.1
- McLane, Louis, 1786-1857.1
- Meigs, Montgomery, 1847-1931.1
- Menken, Adah Isaacs, 1835-1868 (Spirit)1
- Modern Spiritualists Society.1
- Monroe, James, 1758-1831.1
- Montez, Lola, 1818-1861.1
- Moore family.1
- Moore, Andrew.1
- Moore, Eliza.1
- Moore, Peggy Hughes, 1786-1843.1
- Moore, Samuel, -1845.1
- Morse, J. J. (James Johnson), 1849-.1
- Mount Washington Cog Railway.1
- Napoleon III, Emperor of the French, 1808-1873.1
- New York Elevated Railway Company.1
- Newbrough, John Ballou, 1828-1891.1
- Northern Pacific Railway Company.1
- Owen, J. J. (James Jerome), 1827-.1
- Peebles, J. M. (James Martin), 1822-1922.1