- L.J. Richards & Co., publisher, cartographer1
- Latham, J. A., cartographer1
- Leo, Gerhard W.1
- Lincoln, Ezra, 1819-18631
- Lufkin, Richard F. (Richard Friend)1
- Massachusetts. Board of Railroad Commissioners1
- Massachusetts. Metropolitan Park Commission, cartographer1
- McCobb, Timothy D.1
- McIntosh, Willard L.1
- Metropolis Map Co., cartographer1
- Milton Bradley Company, cartographer, publisher1
- Mitchell, S. Augustus (Samuel Augustus), 1792-18681
- Mitchell, William, 1791-1868, surveyor1
- Morse, James H., cartographer1
- Morse, Sidney E. (Sidney Edwards), 1794-1871, cartographer1
- Mulford, John C., cartographer1
- Murphy, John F., creator1
- National Geographic Society (U.S.). Cartographic Division1
- National Highways Association, issuing body1
- Nicholson, Walter L.1
GeoBlacklight version 4.1.0
