Columbia subject headings:
Harvard subject headings:
London (England)--Social conditions.
Poor--England--London
Working class--England--London
Princeton subject headings:
London (England)--Description and travel.
London (England)--Pictorial works.
London (England)--Social conditions--19th century--Pictorial works.
London (England)--Social conditions--19th century.
London (England)--Social life and customs--19th century--Pictorial works.
London (England)--Social life and customs--19th century.
Poor--England--London.
Working--England--London--History--19th century.