- National Association of Student Ymc As (2)
- National Board of the Young Men's Christian Associations (11)
- National Board of the Young Men's Christian Associations Commission on Interracial Policies and Program (1)
- National Board of the Young Men's Christian Associations Committee on Interracial Advance (1)
- National Board of the Young Men’s Christian Associations (Ymca) International Division (5)
- National Cash Register Company (1)
- National Conference of Christians and Jews (6)
- National Conference of Christians and Jews Archives (6)
- National Conference of Jews and Christians (6)
- National Council of Student Christian Associations (2)
- National Council of the Young Men's Christian Associations (Ymca) of the United States of America. Foreign Division (5)
- National Council of the Young Men's Christian Associations of the United States of America (3)
- National Federation of Settlements and Neighborhood Centers (2)
- National Federation of Settlements and Neighborhood Centers Archives (2)
- National Social Welfare Assembly (35)
- National Social Welfare Assembly Archives (35)
- National Social Work Council (u.s.). (35)
- National Social Work Council (us) Archives (35)
- National Teenage Conference on Human Rights (35)
- National War Work Council, Y. M. C. A. Of the United States (1)
