Names
- Lyons, Richard Bickerton Lyons, Earl, 1817-1887.1
- Mabie, Hamilton Wright, 1845-1916.1
- Macomb, Alexander, 1782-1841.1
- Madison, James, 1751-1836.1
- Malmesbury, James Howard Harris, Earl of, 1807-1889.1
- Marcy, William Learned, 1786-1857.1
- Margry, Pierre, 1818-1894.1
- Mason, James Murray, 1798-1871.1
- Mason, John Young, 1799-1859.1
- Mason, Stevens Thomson, 1811-1843.1
- Mathews, William Smythe Babcock, 1837-1912.1
- Mayo, Robert, 1784-1864.1
- McClelland, Robert, 1807-1880.1
- McCosh, James, 1811-1894.1
- McCoskry, Samuel Allen, 1804-1886.1
- McHenry, James, 1753-1816.1
- McLane, Louis, 1786-1857.1
- McLane, Robert, 1815-1898.1
- McLean, John, 1785-1861.1
- Meigs, Montgomery Cunningham, 1816-1892.1