Columbia subject headings:
Great Britain--Foreign relations--United States.
Northeast boundary of the United States.
United States--Foreign relations--Great Britain.
Webster-Ashburton Treaty
Harvard subject headings:
Great Britain--Foreign relations--United States.
Great Britain. Treaties, etc. 1842 August 9.
Northeast boundary of the United States.
United States--Foreign relations--Great Britain.
Princeton subject headings:
Great Britain--Foreign relations--United States.
Great Britain. Treaties, etc. 1842 Aug. 9.
Northeast boundary of the United States.
United States--Foreign relations--Great Britain.