Columbia subject headings:
Freedom of religion--United States--History--19th century.
Freedom of religion--United States--History--20th century.
United States--Church history--19th century.
United States--Church history--To 1775.
Harvard subject headings:
Freedom of religion--United States--History--19th century.
Freedom of religion--United States--History--20th century.
United States--Church history--19th century.
United States--Church history--To 1775.
Princeton subject headings:
Freedom of religion--United States--History--19th century.
Freedom of religion--United States--History--20th century.
United States--Church history--19th century.
United States--Church history--To 1775.