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Baltimore, Roderick T., and Robert F. Williams. "The State Constitutional Roots of the 'Separate but Equal' Doctrine: Roberts v. City of Boston." Rutgers Law Journal 17 (1986): 537

Levy, Leonard W. The Law of the Commonwealth and Chief Justice Shaw. New York: HarperTorchbooks, 1957.

Levy, Leonard W., and Douglas L. Jones, eds. Jim Crow in Boston: The Origin of the Separate but Equal Doctrine. New York: Da Capo Press, 1974.