Names
- 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 Detroit, Inc (Detroit, Mich.)1
- New York Central Railroad Company.1
- New York Central and Hudson River Railroad Company.1
- Norfolk and Western Railway Company.1
- North Park Railway Company.1
- Northern Michigan Traction Company.1
- Ohio and Michigan Sand and Gravel Company.1
- Overseas Advisory Associates, Inc.1
- Paris & Pere Marquette River Railroad Company.1
- Peerless Portland Cement Company.1
- Pennsylvania Railroad.1