Lathrop, George Parsons. "The Literary Movement in New York." Harper's New Monthly Magazine 73, no. 438 (1886): 813-833.
"Appletons' Cyclopaedia of American Biography, Volume VI, Sunderland-Zurita." In Appletons' Cyclopaedia of American Biography, Volume VI, Sunderland-Zurita, edited by Wilson, James Grant and John Fiske. New York: D. Appleton & Co., 1888.
"In and about the City: Death of Charles I. Pfaff. Something about the Proprietor of the Once Famous "Bohemia."." New York Times, April 26, 1890, 2.
Ford, James L. "New York's Bohemia: A Kingdom Which Still Exists, Although Pfaff's Restaurant is No More." The Philadelphia Inquirer, November 27, 1892, 14.
"In Re Walt Whitman." In In Re Walt Whitman, edited by Traubel, Horace L., Richard Maurice Bucke, and Thomas B. Harned. Philadelphia: David McKay, 1893.
"Died in Bowery Lodgings: Sad Ending of the Career of George G. Clapp." New York Times, April 10, 1893, 3.
Wolfe, Theodore F. Literary Shrines: The Haunts of Some Famous American Authors. Philadelphia: J.B. Lippincott and Company, 1895.
Howells, William Dean. "First Impressions of Literary New York." Harper's New Monthly Magazine, June 1, 1895, 62-74.
The Vault at Pfaff's