by Music Teachers National Association

1920

by Music Educators National Conference (U.S.)

1930

by National Association of Accountants

1925

by American National Red Cross. Atlantic Division

1920

by National Education Association of the United States. Committee on College Entrance Requirements

1896

by National Tax Association

1928

by National Association of Retail Druggists (U.S.)

1917

by National Electric Light Association

1930

by National Conference of Charities and Correction (U.S.). Annual Session

1902

by National Conference of Canadian Universities and Colleges. Meeting

1928

by National Education Association of the United States

1912

by National Coal Association

1919