Columbia subject headings:
Educational equalization--United States.
Public schools--United States--History.
Vocational education--United States--History.
Working class--Education--United States.
Harvard subject headings:
Education--Political aspects--United States
Educational equalization--United States.
Public schools--United States--History.
Social classes--United States
Princeton subject headings:
Educational equalization--United States.
Public schools--United States--History.
Vocational education--United States--History.
Working class--Education--United States.