Columbia subject headings:
Catholic Church--Education--United States--History--20th century.
Catholic schools--United States--History--20th century.
Harvard subject headings:
Catholic Church--Education--United States--History--20th century.
Catholic schools--United States--History--20th century.
Princeton subject headings:
Catholic Church--Education--United States--History--20th century.
Catholic schools--United States--History--20th century.