Columbia subject headings:
Kentucky--History.
Louisiana--History.
Mississippi River Valley--History.
Northwest, Old--History.
Ohio River Valley--History.
Tennessee--History.
Harvard subject headings:
Kentucky--History.
Louisiana--History
Mississippi River Valley--History.
Northwest, Old--History.
Ohio River Valley--History.
Tennessee--History.
Princeton subject headings:
Burr, Aaron, 1716-1757.
Kentucky--History.
Louisiana--History.
Mississippi River Valley--History.
Northwest, Old--History.
Ohio River Valley--History.
Tennessee--History.