"Pfaff's [from the N.Y. correspondent of the Boston <cite>Saturday Express</cite>]." New York Saturday Press, December 3, 1859, 2.
"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.
Smith, Francis Hopkinson Walter Appleton Clark. The Fortunes of Oliver Horn. New York: Charles Scribner’s Sons, 1902.
Hemstreet, Charles. "Literary New York: Its Landmarks and Associations.." Literary New York: Its Landmarks and Associations. (1903).
Wilson, Rufus Rockwell. New York: Old & New; Its Story, Streets, and Landmarks. Philadelphia: J.B. Lippincott & Co., 1903.
Winter, William. Old Friends; Being Literary Recollections of Other Days. New York: Moffat, Yard and Company, 1909.
Vedder, Elihu. The Digressions of V., Written for his Own Fun and that of His Friends, by Elihu Vedder; Containing the Quaint Legends of his Infancy, an Account of his Stay in Florence, the Garden of Lost Opportunities, Return Home on the Track of Columbus, His Struggle. Boston & New York: Houghton, Mifflin & Co., 1910.
Seitz, Don Carlos. Artemus Ward (Charles Farrar Browne): A Biography and Bibliography. NY: Harper & Brothers, 1919.