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- McAllister, James1
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- McDowell, Robert C., 1935-1
- McIntosh, Willard L.1
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- Miller, Ralph L. (Ralph LeRoy), 1909-19911
- Miller, Robert D. (Robert David), 1922-1
- Monroe, Watson Hiner, 1907-19921
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- Moran, Stephen R.1
- Morton, Robert B.1
- Mutch, Thomas A., 1931-1
- National Geographic Society (U.S.). Cartographic Division1
- Newfoundland. Mineral Development Division, cartographer, issuing body1
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- Ogniben, Leo1
- Olson, Jerry Chipman, 1917-1
GeoBlacklight version 4.1.0
