Columbia subject headings:
England--Emigration and immigration--History--19th century.
Migration, Internal--Great Britain--History--19th century.
Wales--Emigration and immigration--History--19th century.
Harvard subject headings:
England--Emigration and immigration--History--19th century.
Migration, Internal--Great Britain--History--19th century.
Wales--Emigration and immigration--History--19th century.
Princeton subject headings:
England--Emigration and immigration--History--19th century.
Migration, Internal--Great Britain--History--19th century.
Wales--Emigration and immigration--History--19th century.