by National Educational Association (U.S.)

1907

by National Education Association of the United States

1908

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

1912

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

1924

by National Federation of Day Nurseries

1925

by National Conference on Social Welfare

1924

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

1925

by National Society for the Study of Education

1929

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

1920

by National Society for the Study of Education. Committee on Preschool and Parental Education

1929

by National Association for the Education of Young Children

1927

by National Conference on Social Welfare

1897