Robert Sullivan, The Disappearance of Dr. Parkman (Boston: Little, Brown and Company, 1971).

Simon Schama, Dead Certainties (Unwarranted Speculations) (New York: Knopf, 1991).

Robert G. Gale, "John White Webster," in American National Biography (New York: Oxford University Press, 1999).

John White Webster, Trial of Professor John W. Webster, for the Murder of Doctor George Parkman. Reported Exclusively for the N.Y. Daily Globe (New York: Stringer and Townsend, 1850).