Columbia subject headings:
Admirals--Great Britain--Biography.
Great Britain. Royal Navy--History--20th century.
Great Britain. Royal Navy--Military life.
Social change--Great Britain--History--20th century.
Harvard subject headings:
Admirals--Great Britain--Biography
Great Britain. Royal Navy--Biography.
Great Britain. Royal Navy--Military life.
Social change--Great Britain--History--20th century.
Twiss, Frank, Sir, 1910-1994.
Princeton subject headings:
Admirals--Great Britain--Biography.
Great Britain. Royal Navy--Biography.
Great Britain. Royal Navy--Military life.
Social change--Great Britain--History--20th century.
Twiss, Frank, Sir, 1910-1994.