Columbia subject headings:
Greenhow, Robert, 1800-1854. Memoir, historical and political, on the northwest coast.
Northwest boundary of the United States.
Oregon question.
Harvard subject headings:
Greenhow, Robert, 1800-1854. Memoir, historical and political, on the northwest coast.
Northwest boundary of the United States.
Oregon Territory--History.
Oregon question.
Princeton subject headings:
Greenhow, Robert, 1800-1854. Memoir, historical and political, on the northwest coast.
Northwest boundary of the United States.
Oregon Territory--History.