Names
- Maine (Battleship)1
- Malmesbury, James Howard Harris, Earl of, 1807-1889.1
- Marcy, William Learned, 1786-1857.1
- Margry, Pierre, 1818-1894.1
- Marshall, Doug.1
- Mason, James Murray, 1798-1871.1
- Mason, John Young, 1799-1859.1
- Mason, Stevens Thomson, 1811-1843.1
- Masó, Bartolomé.1
- Mathews, William Smythe Babcock, 1837-1912.1
- Mayo, Robert, 1784-1864.1
- McCaskey, Douglas.1
- McCaskey, William.1
- McClelland, Robert, 1807-1880.1
- McCosh, James, 1811-1894.1
- McCoskry, Samuel Allen, 1804-1886.1
- McDermott, James.1
- McHenry, James, 1753-1816.1
- McKinley, William, 1843-1901.1
- McLane, Louis, 1786-1857.1