Allen, Gay Wilson. The Solitary Singer: A Critical Biography of Walt Whitman. New York: MacMillan. (1955-1-1).
WORKS ABOUT - O'Brien, Fitz-James
Hahn, Emily. Romantic Rebels; An Informal History of Bohemianism in America. Boston; Houghton Mifflin. (1967-1-1).
Stovall, Floyd. The Foreground of Leaves of Grass. Charlottesville: University Press of Virginia. (1974-1-1).
Lalor, Eugene T.. "The Literary Bohemians of New York City in the Mid-Nineteenth Century." The Literary Bohemians of New York City in the Mid-Nineteenth Century. Ph.D. Dissertation, St. John's University. (1977-1-1).
Lalor, Eugene. "Whitman among the New York Literary Bohemians: 1859–1862." Walt Whitman Review. (1979-1-1). 131-145.
Miller, Tice L.. Bohemians and Critics: American Theatre Criticism in the Nineteenth Century. Metuchen, NJ: The Scarecrow Press. (1981-1-1).
Hoppenstand, Gary. Fitz-James O'Brien. Detroit: Gale. (1988-1-1).
Hyman, Martin D.. "'Where the Drinkers & Laughers Meet': Pfaff's: Whitman's Literary Lair." Seaport. (1991-4-1). 56-61.
Stansell, Christine. "Whitman at Pfaff's: Commercial Culture, Literary Life and New York Bohemia at Mid-Century." Walt Whitman Quarterly Review. (1993-1-1). 107-126.
Reynolds, David S.. Walt Whitman's America: A Cultural Biography. New York: Knopf. (1995-1-1).
Cornwell, Neil. Piracy and Higher Realism: The Strange Case of Fitz-James O'Brien and Vladimir Odoevsky. Providence: Berghahn Books. (1998-1-1).
Loving, Jerome. Walt Whitman: The Song of Himself. Berkley Calif. : University of California Press. (1999-1-1).
Morris, Roy Jr.. The Better Angel: Walt Whitman in the Civil War. Oxford: Oxford University Press. (2000-1-1).
Levin, Joanna Dale. "American Bohemias, 1858-1912: A Literary and Cultural Geography." American Bohemias, 1858-1912: A Literary and Cultural Geography. Ph.D Dissertation; Stanford University. (2001-1-1).
Sentilles, Renee M.. Performing Menken: Adah Isaacs Menken and the Birth of American Celebrity. Cambridge, United Kingdom: Cambridge University Press. (2003-1-1).
Belasco, Susan. "From the Field: Walt Whitman's Periodical Poetry." American Periodicals. (2004-1-1). 247-59.
Epstein, Daniel Mark. Lincoln and Whitman: Parallel Lives in Civil War Washington. New York: Random House Trade Paperbacks. (2004-1-1).
Folsom, Ed and Kenneth M. Price. Re-Scripting Walt Whitman: An Introduction to His Life and Work. Malden, MA: Blackwell. (2005-1-1).
Folsom, Ed and Kenneth M. Price. "Walt Whitman." The Walt Whitman Archive. http://www.whitmanarchive.org. (2006-1-1).
Schmidgall, Gary. Conserving Walt Whitman's Fame: Selections from Horace Traubel's <cite>Conservator</cite>, 1890-1919. Iowa City: University of Iowa Press. (2006-1-1).