Names
- Masten, C. C.1
- McKim, Charles Follen, 1847-1909.1
- McKim, Mead & White.1
- Michigan Central Railroad Company.1
- Michigan Electric Railway Company.1
- Michigan Railway Company (1914-1921)1
- Michigan. State Board for Registration of Architects, Engineers, and Surveyors.1
- Michigan. State Board of Registration for Architects, Professional Engineers, and Land Surveyors.1
- Mineral Range Railroad Company.1
- Mitchell Bros. Company.1
- Moon, Charles H.1
- Moore, Park & Sharp.1
- Mount Washington Railway Company.1
- Mumford, Lewis, 1895-1
- Mumford, Lewis, 1895-1990.1
- Munising Railway Company.1
- Murphy, Frank, 1890-1949.1
- Nahma & Northern Railroad.1
- National Council of Architectural Registration Boards.1
- New York Central Railroad Company.1