Names
- Meigs, Montgomery Cunningham, 1816-1892.1
- Menken, Adah Isaacs, 1835-1868 (Spirit)1
- Merriman, H.1
- Michigan. Legislature.1
- Modern Spiritualists Society.1
- Monroe, James, 1758-1831.1
- Montez, Lola, 1818-1861.1
- Morgan, Lewis Henry, 1818-1881.1
- Morse, J. J. (James Johnson), 1849-.1
- Morse, Samuel Finley Breese, 1791-1872.1
- Morton, William Thomas Green, 1819-1868.1
- Mount Washington Cog Railway.1
- Napier, Francis, Baron Napier and Ettrick, 1819-1898.1
- Napoleon III, Emperor of the French, 1808-1873.1
- Newbrough, John Ballou, 1828-1891.1
- O'Conor, Charles, 1804-1884.1
- Orr, James Lawrence, 1822-1873.1
- Owen, J. J. (James Jerome), 1827-.1
- Palfrey, John Gorham, 1796-1881.1
- Parkhurst, Charles Henry, 1842-1933.1