Columbia subject headings:
Harvard subject headings:
Greenside Lead Mine (Cumbria, England)--History.
Lead miners--England--Cumbria--History.
Lead mines and mining--England--Cumbria--History.
Princeton subject headings:
Greenside Lead Mine (England)--History.
Lead miners--England--Cumbria--History.
Lead mines and mining--England--Cumbria--History.