by National Guard Association of the United States, National Guard Association of the United States. General Conference

1971

by National Association of State Universities and Land-Grant Colleges

1918

by National Prison Association of the United States. Congress

1907

by National Education Association of the United States

1923

by National Association of Audubon Societies for the Protection of Wild Birds and Animals

1928

by National Association of State Universities

1912

by National University Extension Association

1922

by National Library of Medicine (U.S.)

1910

by National Rifle Association (Great Britain)

1881

by National Live Stock Association (U.S.)

1901

by National Educational Association (U.S.)

1875

by Association of State Universities and Land-Grant Colleges. Convention, American Association of Land-Grant Colleges and State Universities. Convention, Association of American Agricultural Colleges and Experiment Stations. Convention, National Association of State Universities and Land-Grant Colleges. Convention

1904