- Mappemonde Portugaise anonyme de 1502.1
- Mariette, Pierre, 1603-16571
- Marion, Israel1
- Martin, Amédée.1
- Martin, Ebenezer (Engraver)1
- Martin, G.B.1
- Massa, Isaac, 1587-16351
- Mathews & Longyear.1
- Matsumura, Kyûbê.1
- Matthias, Benjamin I.1
- Maull Co.1
- Maury, Matthew Fontaine, 1806-18731
- Maury, Matthew Fontaine, 1806-1873. Wind and current charts.1
- Mayo, Geo. U. (George U.)1
- McClelland, Robert, 1807-1880, former owner.1
- McClosky, James1
- Medtman, Matthias van.1
- Meisel, A. (Augustus)1
- Mercator, Gerhard, 1512-1594, cartographer1
- Mercator, Gerhard, 1512-1594, engraver.1