Boewe, Charles. "Rölvaag's America: An Immigrant Novelist's Views." Western Humanities Review Winter 1957: 3–12.
Reigstad, Paul. Rölvaag: His Life and Art. Lincoln: University of Nebraska Press, 1972.
Simonson, Harold Peter. Prairies Within: The Tragic Trilogy of Ole Rölvaag. Seattle: University of Washington Press, 1987.
Thaler, Peter. "Concepts of Ethnicity in Early Twentieth-Century Norwegian America." Scandinavian Studies Winter 1997: 85–104.
Turner, Frederick Jackson. The Frontier in American History. New York: Holt, Rinehart and Winston, 1962.
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