"Old 'Barry Gray' Dead." The New York World. New York. (1886-6-12).
WORKS ABOUT - Whitman, Walt
"A Visit to Walt Whitman." Brooklyn Eagle. (1886-7-11).
Lathrop, George Parsons. "The Literary Movement in New York." Harper's New Monthly Magazine. (1886-11-1).
Wilson, James Grant and John Fiske. Appletons' Cyclopaedia of American Biography, Volume VI, Sunderland-Zurita. New York: D. Appleton & Co. (1888-1-1).
"General gossip of authors and writers." Current Literature. (1888-1-1).
"People of Prominence." Pittsburgh Dispatch. Pittsburgh Dispatch. (1889-9-20).
Stedman, Edmund Clarence. Poets of America. Boston: Houghton Mifflin Company. (1890-1-1).
"In and about the City: Death of Charles I. Pfaff. Something about the Proprietor of the Once Famous "Bohemia."." New York Times. (1890-4-26).
"[Acute gastritis, which carried off Charles Pfaff last week]." Brooklyn Eagle. (1890-4-27).
Burroughs, John. "The Poet of Democracy." The North American Review. (1892-5-1).
Ford, James L.. "New York's Bohemia: A Kingdom Which Still Exists, Although Pfaff's Restaurant is No More." The Philadelphia Inquirer. (1892-11-27).
Traubel, Horace L., Richard Maurice Bucke, and Thomas B. Harned. In Re Walt Whitman. Philadelphia: David McKay. (1893-1-1).
Leland, Charles Godfrey. Memoirs. New York: D. Appleton & Co. (1893-1-1).
"Died in Bowery Lodgings: Sad Ending of the Career of George G. Clapp." New York Times. (1893-4-10).
Burroughs, John. "Walt Whitman and His Art." Poet Lore. (1894-2-1).
Wolfe, Theodore F.. Literary Shrines: The Haunts of Some Famous American Authors. Philadelphia: J.B. Lippincott and Company. (1895-1-1).
"Harper's Magazine." Brooklyn Eagle. (1895-5-27).
Howells, William Dean. "First Impressions of Literary New York." Harper's New Monthly Magazine. (1895-6-1).
Burroughs, John. Whitman: A Study. New York: Houghton, Mifflin. (1896-1-1).
Donaldson, Thomas. Walt Whitman the Man. New York; F.P. Harper. (1896-1-1).