BUTTERFIELD, Roger. “George Lippard and His Secret Brotherhood.” [GGI: 1711]. 

CURTIS, Julia. “Philadelphia in an Uproar: The Monks of Monk Hall.” [GGII: 0978]. 

DE GRAZIA, Emilio. “Poe’s Devoted Democrat, George Lippard.” [GGI: 1712]. 

EHRLICH, Heyward. “The ‘Mysteries’ of Philadelphia: Lippard’s Quaker City and ‘Urban’ Gothic.” [GGI: 1713]. 

FIEDLER, Leslie. “Introduction.” To The Quaker City; or, The Monks of Monk Hall.” [GGI: 1714]. 

FRANK, Frederick S. “George Lippard” (pp. 261-69). In Gothic Writers: A Critical and Bibliographical Guide, eds. Douglass H. Thomson, Jack G. Voller, and Frederick  S. Frank. Westport, CT: Greenwood Press, 2002.

GILMORE, Michael T. “The Book Marketplace I.” In Columbia History of the American Novel. [GGII: 0979].. 

JACKSON, Joseph. “George Lippard: Misunderstood Man of Letters.” [GGI: 1715]. 

JACKSON, Joseph. “A Bibliography of the Works of George Lippard.” [GGI: 1716]. 

REYNOLDS, David N. George Lippard. [GGI: 17-18; GGII: 0980].

REYNOLDS, David N. George Lippard, Prophet of Protest. Writings of an American Radical, 1822-1854. [GGII: 0981]. 

REYNOLDS, David N. “Introduction” (pp. vii-xliv). To The Quaker City; or, The Monks of Monk Hall. A Romance of Philadelphia Life, Mystery, and Crime. Amherst, MA: University of Massachusetts Press, 1995.

RIDGELY, J.V. “George Lippard’s The Quaker City: The World of American Porno-Gothic.” [GGI: 1719]. 

STREEBY, Shelley Suzanne. “Republican Gothic: George Lippard, Urban Sensationalism, and the Transformation of the Literary Public Sphere in the United States, 1830-1860.”  Dissertation  Abstracts International 55:9 (1995): 2876A (University of California at Berkeley).