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

1911

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

1884

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

1915

by National Conference of Social Work (U.S.). Annual Session

1924

by National Conference of Jewish Communal Service (U.S.)

1910

by National Child Labor Committee (U.S.)

1911

by National Association for the Study and Prevention of Tuberculosis (U.S.)

1914

by National Conference on Social Welfare

1897

by National Association for the Study and Prevention of Tuberculosis (U.S.)

1917

by National Consumers' League

1911

by National Conference on Social Welfare

1914

by National Agricultural Library (U.S.)

1897