- Mann, Charles J.2
- Marean, Herbert W.2
- Mariette, Pierre, 1603-16572
- Merian, Matthaeus, 1593-16502
- Metuchen Democratic Committee2
- Michigan. Land Economic Survey2
- Milwaukee Lith. & Engr. Co.2
- Minn Saint Louis County Highway Dept.2
- Minnesota Forest Service2
- Minnesota Geological Survey2
- Minnesota. State Drainage Commission.2
- Mogg, Edward2
- Mohun, Edward2
- Molitor, E.2
- Moran, W. H.(William H.), cartographer.2
- Morden, Robert, -17032
- Morse, Sidney E. (Sidney Edwards), 1794-18712
- Mulford, John C.2
- Mullett, John, 1786-18622
- National Cartographic Center (U.S.)2