Columbia subject headings:
Commonwealth countries--History--Sources.
Great Britain--Colonies--History--Sources.
Great Britain. Foreign Office.
O'Regan, John, 1913-
Harvard subject headings:
Colonial administrators--Great Britain--Biography
Commonwealth countries History.
Great Britain--Colonies--Administration--History--20th century.
Great Britain. Foreign Office--History.
O'Regan, John, 1913-
Princeton subject headings:
Colonial administrators--Great Britain--Biography.
Commonwealth countries--History.
Great Britain--Colonies--Administration--History--20th century.
Great Britain. Foreign Office--History.
O'Regan, John, 1913-