Subject - Names
- National Colonial Exhibition.1
- National Convention of Gospel Choirs and Choruses, Inc.1
- National Convention of the Churches of the Lord Jesus Christ (16th : Oct. 6, 1951 : Philadelphia, Pa.)1
- National Convention, Church of the Lord Jesus Christ of the Apostolic Faith (30th : Sept. 5, 1965 : Philadelphia, Pa.)1
- National Convention, International Labor Defence (4th : Dec. 29-31, 1929 : Pittsburgh, Pa.)1
- National Coupon Pub. Co. (Dayton, Ohio)1
- National Dental Association (1932- ). Annual session (27th : St. Louis)1
- National Heart and Lung Institute.1
- National Historical Wax Museum (Washington, D.C.)1
- National Home for Disabled Volunteer Soldiers3
- National Independent Equal Rights League.1
- National Independent Political League, Washington, D.C53
- National Independent Political League, Washington, D.C.806
- National Medical Association (St. Louis, Mo.)1
- National Medical Association (U.S.)1
- National Medical Association.1
- National Negro Business League (U.S.)3
- National Negro Conference (Nov. 11-12, 1925 : Washington, D.C.)1
- National Negro Insurance Association (Atlanta, Ga.)1
- National Negro Opera Company (U.S.)2