- Mullens, Thomas E. (Thomas Ellison), 1924-1
- Muller, J. E. (Jan Engelbert), 1917-1
- Mulligan, Robert1
- National Geographic Society (U.S.). Cartographic Division1
- Nelson, Willis H. (Willis Howard), 1920-1
- Nicaragua. Dirección General de Cartografía.1
- Nichols, Donald R.1
- Oldale, Robert N.1
- Olive, Wilds W. (Wilds Williamson), 1921-1
- Organization of American States1
- Orkild, Paul P.1
- Peck, John H., 1937-1
- Pembina (Firm)1
- Peterson, Warren Lee, 1925-1
- Philippines. Bureau of the Census and Statistics. Geography Division, cartorapher1
- Pierce, William Gamewell, 1904-1
- Pillmore, C. L., 1930-1
- Pratt, Walden P.1
- Prilipko, L. I. (Leonid Ivanovich)1
- Québec (Province). Geological Services1
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