Columbia subject headings:
Catholic Church--United States--History--20th century.
Catholics--United States.
Christian sociology--Catholic Church.
United States--Church history--20th century.
Harvard subject headings:
Catholic Church--United States--History--20th century.
Catholics--United States
Christian sociology--Catholic Church.
United States--Church history--20th century.
Princeton subject headings:
Catholic Church--United States--History--20th century.
Catholics--United States.
Christian sociology--Catholic Church.
United States--Church history--20th century.