- Macomber, R. Z.2
- Mann, Charles J.2
- Marean, Herbert W.2
- Mariette, Pierre, 1603-16572
- Martin, Ebenezer (Engraver)2
- McSwiggen, Peter L.2
- Meints, Joyce P.2
- 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. Division of Waters2
- Minnesota. State Drainage Commission.2
- Mogg, Edward2
- Mohun, Edward2
- Molitor, E.2
- Moran, W. H.(William H.), cartographer.2
- Morden, Robert, -17032