Names
- Miller, Gerrit Smith, 1845-1937.1
- Milnor, James, 1773-1845.1
- Mitchel, O. M. (Ormsby MacKnight), 1809-1862.1
- Moltke, Helmuth, Graf von, 1800-1891.1
- Moore, Hiland Augustus, 1843-1918.1
- Moore, Mary Elizabeth, 1842-1915.1
- Nadar, Félix, 1820-1910.1
- Negretti and Zambra.1
- North-Western Normal Photographic Studio (Geneseo, Ill.)1
- Odenheimer, William Henry, 1817-1879.1
- Painter, Francis J. (Francis James), 1841-1910.1
- Painter, Joseph Elwood, 1842-1878.1
- Parmele, Theodore Weld, 1833-1893.1
- Piccolomini, M. (Marietta), 1834-1899.1
- Platt, H. M. (Henry Martin), 1835-1899.1
- Pope, Charlotte Cushing, 1838-1872.1
- Pope, John, 1822-1892.1
- Potter, Horatio, 1802-1887.1
- Purvis, C. B. (Charles Burleigh), 1841-1929.1
- Purvis, Harriet J., 1839-1905.1