Names
- Lewis Cass Expedition, 1820.1
- Lloyd, Delia A.1
- Lord, H.1
- Lyell, Thomas, 1775-1848.1
- Macomb, Alexander, 1782-1841.1
- Marshall, Thomas C., 1797-1849.1
- McDowell, Andrew, 1757-1843.1
- McGillivray, Alexander Charles, 1826-1873.1
- McVickar, John, 1787-1868.1
- Meigs, Josiah, 1757-1822.1
- Menninger, C. G.1
- Miner, Charles, 1780-1865.1
- Mitchell family1
- Mitchell, Clarence G., 1826-1893.1
- Mitchell, John W., 1796-1878.1
- Mitchell, Martha L., 1834-1865.1
- Mitchell, Timothy G., 1827-1857.1
- Mitchell, William Henry, 1832-1882.1
- Mitchill, Samuel Latham, 1764-1831.1
- Mouzon, L. H., 1803-1860.1