Names
- Mott, Charles Stewart, 1875-1973.1
- Mount Vernon Seminary1
- Murfin, James Orin, 1875-1940.1
- National Association of Manufacturers1
- National Association of Manufacturers (U.S.)1
- National Conference of Christians and Jews1
- National Council for Industrial Defense.1
- National Cyclopedia of American Biography1
- National Economic League (U.S.)1
- National Federation of Music Clubs1
- National Gallery of Art1
- National Geographic Society1
- National Home Finding Society for Colored Children.1
- National Institute of Social Sciences1
- National Savings and Trust Company1
- National Society of Arts and Letters1
- National Society of Interior Designers1
- National Symphony Orchestra1
- National Trust for Historic Preservation1
- Needle and Bobbin Club1