Columbia subject headings:
Catholic Church--United States--History--20th century.
O'Connor, John J. (John Joseph), 1920-2000.
Harvard subject headings:
Catholic Church--United States--History--20th century.
O'Connor, John J. (John Joseph), 1920-2000.
O'Connor, John Joseph, 1920-
Princeton subject headings:
Catholic Church--United States--History--20th century.
O'Connor, John J. (John Joseph), 1920-2000.