Columbia subject headings:
Harvard subject headings:
Coal miners--England--Tyne and Wear--Correspondence.
Coal mines and mining--England--Tyne and Wear.
Fraser, Kit--Correspondence.
Tyne and Wear (England)--Biography.
Princeton subject headings:
Coal miners--England--Tyne and Wear--Correspondence.
Coal mines and mining--England--Tyne and Wear.
Fraser, Kit--Correspondence.
Tyne and Wear (England)--Biography.