The California trail, an epic with many heroes.

Stewart, George R., 1895-1980.
New York : McGraw-Hill, [1962]
[1st ed.]

Doomed road of empire; the Spanish trail of conquest

Carter, Hodding, 1907-1972.
New York : McGraw-Hill, [1963]
[1st ed.]

The gathering of Zion; the story of the Mormon Trail

Stegner, Wallace, 1909-1993.
New York : McGraw-Hill, [1964]
[1st ed.].

Westward vision; the story of the Oregon Trail.

Lavender, David, 1910-2003.
New York : McGraw-Hill, [1963]
[1st ed.]