The following publications contain information about William Cross:

Article: "A Note on Billy Cross" by Robert A. Prager • Little Big Horn Associates Newsletter, Vol. IX, No. 4, April 1975.

Article: "Some Speculations on Bill Cross" by Robert A. Prager • Research Review (Newsletter Literary Section), Vol. X, No. 1976-1, January 1976.

Article: "The 'Billy' Cross Interview" by James Willert • Research Review, Vol. XVI, No. 1982-12, December 1982.