Beyond the cross timbers; the travels of Randolph B. Marcy, 1812-1887.

Hollon, W. Eugene (William Eugene), 1913-2002.
Norman : University of Oklahoma Press, [1955]
[1st ed.]

Frontier violence; another look

Hollon, W. Eugene (William Eugene), 1913-2002.
New York : Oxford University Press, 1974.

The Great American Desert then and now

Hollon, W. Eugene (William Eugene), 1913-2002.
New York : Oxford University Press, 1966.

The lost pathfinder, Zebulon Montgomery Pike

Hollon, W. Eugene (William Eugene), 1913-2002.
Norman, Okla. : University of Oklahoma Press, 1949.

Western America; the exploration, settlement, and development of the region beyond the Mississippi

Hafen, LeRoy R. (LeRoy Reuben), 1893-1985.
Englewood Cliffs, N.J. : Prentice-Hall, [1970]
3d ed.