"A Visit to Walt Whitman." Brooklyn Eagle. (1886-7-11).
WORKS ABOUT - Clapp, Henry
"General gossip of authors and writers." Current Literature. (1888-1-1).
Watson, J. W.. "Notes and Comments: How Artemus Ward Became a Great Lecturer." North American Review. (1889-4-1).
"People of Prominence." Pittsburgh Dispatch. Pittsburgh Dispatch. (1889-9-20).
Lukens, Henry Clay. "American Literary Comedians." Harper's New Monthly Magazine. (1890-4-1).
"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).
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).
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).
Twain, Mark. "A Private History of the 'Jumping Frog' Story." The North American Review. (1894-4-1).
Howells, William Dean. "First Impressions of Literary New York." Harper's New Monthly Magazine. (1895-6-1).
Donaldson, Thomas. Walt Whitman the Man. New York; F.P. Harper. (1896-1-1).
Rawson, A. L.. "A Bygone Bohemia." Frank Leslie's Popular Monthly. (1896-1-1).
Edwards, Henry Sutherland. Personal Recollections. London: Cassell and Company. (1900-1-1).
Whitman, Walt. Complete Writings of Walt Whitman. New York: Putnam. (1902-1-1).
Hemstreet, Charles. Literary New York: Its Landmarks and Associations. New York: G.P. Putnam. (1903-1-1).
Wilson, Rufus Rockwell. New York: Old & New; Its Story, Streets, and Landmarks. Philadelphia: J.B. Lippincott & Co. (1903-1-1).
"Richard Henry Stoddard." Watchman. (1903-5-21).
Eytinge, Rose. The Memories of Rose Eytinge: Being Recollections & Observations of Men, Women, and Events, during Half a Century. New York: Frederick A. Stokes. (1905-1-1).
Maurice, Arthur Bartlett. "Literary Clubland II: New York's Literary Clubs." The Bookman: A Review of Books and Life. (1905-6-1).