Columbia subject headings:
Chicago (Ill.)--Politics and government--To 1950.
Child welfare--Illinois--Chicago--History--Case studies.
Education--Political aspects--History--Case studies.
Education--Political aspects--Illinois--Chicago--History--Case studies.
Vocational education--Illinois--Chicago--History--Case studies.
Harvard subject headings:
Chicago (Ill.)--Politics and government--To 1950.
Child welfare--Illinois--Chicago--History--Case studies.
Education--Political aspects--History--Case studies.
Education--Political aspects--Illinois--Chicago--History--Case studies.
Vocational education--Illinois--Chicago--History--Case studies.
Princeton subject headings:
Chicago (Ill.)--Politics and government--To 1950.
Child welfare--Illinois--Chicago--History--Case studies.
Education--Political aspects--History--Case studies.
Education--Political aspects--Illinois--Chicago--History--Case studies.
Vocational education--Illinois--Chicago--History--Case studies.