Allen, Gay Wilson. The Solitary Singer: A Critical Biography of Walt Whitman. New York: MacMillan, 1955.
Lalor, Eugene. "Whitman among the New York Literary Bohemians: 1859–1862.." Walt Whitman Review 25, (1979): 131-145.
Miller, Tice L. Bohemians and Critics: American Theatre Criticism in the Nineteenth Century. Metuchen, NJ: The Scarecrow Press, 1981.
Stansell, Christine. "Whitman at Pfaff's: Commercial Culture, Literary Life and New York Bohemia at Mid-Century." Walt Whitman Quarterly Review 10, no. 3 (1993): 107-126.
Mullins, Maire. "Beach, Juliette H.." In Walt Whitman: An Encyclopedia, edited by Lemaster, J. R. and Donald D. Kummings. New York: Garland, 1998.
Loving, Jerome. "Walt Whitman: The Song of Himself." Walt Whitman: The Song of Himself (1999): 568 p.