Columbia subject headings:
Harvard subject headings:
Merchant mariners--Great Britain--History--18th century.
Merchant mariners--North America--History--18th century.
Navigation--Great Britain--History--18th century.
Navigation--North America--History--18th century.
Pirates--History--18th century.
Princeton subject headings:
Merchant mariners--Great Britain--History--18th century.
Merchant mariners--North America--History--18th century.
Navigation--Great Britain--History--18th century.
Navigation--North America--History--18th century.
Pirates--History--18th century.