Columbia subject headings:
Harvard subject headings:
Agriculture--England--Essex--History.
Essex (England)--History--18th century.
Essex (England)--Rural conditions--History.
Essex (England)--Social life and customs--18th century.
Poor--England--Essex--Social conditions.
Rich people--England--Essex--Social conditions.
Social change--England--Essex.
Princeton subject headings:
Essex (England)--History--18th century.
Essex (England)--Social life and customs--18th century.