Columbia subject headings:
Merchant marine--Great Britain--History.
World War, 1939-1945--Atlantic Ocean.
World War, 1939-1945--Naval operations, British.
Harvard subject headings:
Merchant marine--Great Britain--History
World War, 1939-1945--Atlantic Ocean.
World War, 1939-1945--Naval operations, British.
Princeton subject headings:
Merchant marine--Great Britain--History.
World War, 1939-1945--Atlantic Ocean.
World War, 1939-1945--Naval operations, British.
World War, 1939-1945--Personal narratives, British.