Holloway, Emory. Walt Whitman: An Interpretation in Narrative. New York & London: Alfred A. Knopf, 1926.
Rogers, Cameron. The Magnificent Idler, the story of Walt Whitman. New York: Garden City, Doubleday, Page and Co., 1926.
Corbett, Elizabeth. Walt; The Good Gray Poet Speaks for Himself. New York: Frederick A. Stokes, 1928.
Parry, Albert. "Garrets and Pretenders: A History of Bohemianism in America." Garrets and Pretenders: A History of Bohemianism in America (1933).
Mott, Frank Luther. A History of American Magazines, Volume II: 1850-1865. Cambridge, MA: Harvard University Press, 1938.
Wilson, Rufus Rockwell and Otilie Erickson Wilson. New York in Literature; The Story Told in the Landmarks of Town and Country. Elmira, NY: Primavera Press, 1947.
Allen, Gay Wilson. The Solitary Singer: A Critical Biography of Walt Whitman. New York: MacMillan, 1955.
Hahn, Emily. Romantic Rebels; An Informal History of Bohemianism in America. Boston; Houghton Mifflin, 1967.
Lalor, Eugene T. "The Literary Bohemians of New York City in the Mid-Nineteenth Century." Ph.D. Dissertation, St. John's University, 1977.
Lalor, Eugene. "Whitman among the New York Literary Bohemians: 1859–1862.." Walt Whitman Review 25, (1979): 131-145.
Hyman, Martin D. "'Where the Drinkers & Laughers Meet': Pfaff's: Whitman's Literary Lair.." Seaport 26, (1991): 56-61.
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.
Traubel, Horace. "Intimate with Walt: Selections from Whitman's Conversations with Horace Traubel, 1888-1892." In Intimate with Walt: Selections from Whitman's Conversations with Horace Traubel, 1888-1892, edited by Schmidgall, Gary. Iowa City: University of Iowa Press, 2001.
Epstein, Daniel Mark. Lincoln and Whitman: Parallel Lives in Civil War Washington. New York: Random House Trade Paperbacks, 2004.
The Vault at Pfaff's