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McGraw, William Cochran. Savage Scene: the Life and Times of James Kirker, Frontier King. New York: Hastings House, 1972.
Sepich, John Emil. "'What Kind of Indians was Them?": Some Historical Sources in Cormac McCarthy's Blood Meridian." The Southern Quarterly. 30.4 (1992): 93-110.
Slotkin, Richard. Gunfighter Nation: the Myth of the Frontier in Twentieth-Century America. New York: Harper Perennial, 1992.
Slotkin, Richard. Regeneration Through Violence: the Mythology of the American Frontier, 1600-1860. Middletown, CT: Wesleyan University Press, 1973.
Smith, Ralph A. "The Scalp Hunter in the Borderlands, 1835-1850." Arizona and the West. 6.1 (1964): 5-22.