Westward expansion : a history of the American frontier / Ray Allen Billington ; with the collaboration of James Blaine Hedges. Billington, Ray Allen. 1903-1981. Hedges, James Blaine, 1894-1965. E179.5 .B63 973 BIW Map on lining papers. Includes index. "Bibliographical note": p. 757-834. New York : Macmillan Co., 1949. 1949. 1949 Text xiii, 873 p. : eng United States Territorial expansion. United States History. Mississippi River Valley History 1803-1865. West (U.S.) History.