De Fontaine, Felix Gregory, reporter. Trial of the Hon. Daniel E. Sickles for shooting Philip Barton Key. . . February 27th, 1859. New York: R. M. De Witt, 1859.
Keneally, Thomas. American Scoundrel: The Life of the Notorious Civil War General Dan Sickles. New York: Nan A. Talese/Doubleday, 2002.
Pinchon, Edgcumb. Dan Sickles, Hero of Gettysburg and Yankee King of Spain. Garden City, N.Y.: Doubleday, Doran and Company, Inc. 1945.
Sauers, Richard Allen. A Caspian Sea of Ink: The Meade-Sickles Controversy. Baltimore: Butternut and Blue, 1989.
Sickles, Daniel Edgar. Address delivered in Boston before the Hooker Association of Massachusetts by Major General Daniel Edgar Sickles. Norwood, Mass.: Norwood Press, 1911 [?].
. Argument of the Hon. Daniel E. Sickles. Albany: J. Munsell, 1857.
. Fourth of July in Charleston. Reprinted from the Charleston Courier. Charleston, S.C.: N.p.,1867.
. New Phases of the Revolution-How to Meet Them. N.p., 1861.
. Oration delivered by Major General D. E. Sickles, U.S.A., before the Society of the Army of the Potomac, at Fredericksburg, Va., May 25, 1900. N.p.: Printed for the Society of the Army of the Potomac, 1900.
. The Revolution of 1860: A Speech delivered by Mr. Sickles, of C. Scribners Sons, in the House of Representatives. Washington: McGill and Witherow, printers, 1861.
. Speech of Hon. Daniel E. Sickles, of N.Y., on the State of the Union, delivered in the House of Representatives, Dec. 10, 1860, on the motion to excuse Hon. Mr. Hawkins, of Florida, from serving on the Committee of One from each state, to which was referred so much of the Presidents message as relates to the secession of states from the Union. [Washington: McGill & Witherow, printer, 1860].
. Speeches of Mr. [John E.] Bouligny of Louisiana, and Mr. Sickles of New York delivered in the House of Representatives, February 5, 1861. N.p., 1861.
. U.S. Army. 2nd Military District. Charleston. Major General D. E. Sickles Report to the General in Chief of the Army, relating to the issue made by the civil authorities with the Commanding General of the Second Military District. Washington, [?]: N.p., 1867.
, ed. Sober Second Thought for the Presidential Campaign of 1844. New York: N.p., 1844.
Swanberg, W. A. Sickles the Incredible. New York: Scribner, 1956.