___. The Poet and the Reformer: Longfellow, Sumner, and the Bonds of Male Friendship. Journal of the Early Republic15 (Summer 1995): 273-97.
Bourke, Paul F., and Donald A. DeBats. Charles Sumner, the London Ballot Society, and the Senate Debate of March 1867." Perspectives in American History 1 (1984): 343-357.
Chaplin, Jeremiah, and Jane Dunbar Chaplin. The Life of Charles Sumner. Boston: D. Lothrop & Co., 1874.
Cohen, Victor H. Charles Sumner and Foreign Relations. Ph.D. dissertation, University of Oklahoma, 1951.
Dawes, Anna Laurens. Charles Sumner. New York: Dodd, Mead & Co., 1892.
Donald, David Herbert. Charles Sumner. New York: Da Capo Press, 1996. A one volume, unabridged republication of Charles Sumner and the Coming of the Civil War(1960) and Charles Sumner and the Rights of Man (1970), with new introduction by the author.
___. Charles Sumner and the Coming of the Civil War. 1960. Reprint. Norwalk, CT: Easton Press, 1987.
___. Charles Sumner and the Rights of Man. New York: Alfred A. Knopf, 1970.
Filippelli, Ronald L. Charles Sumner, Doctor Jackson, and the Mountain. Pennsylvania History 38 (April 1971): 152-62.
Freidel, Frank. Francis Lieber, Charles Sumner, and Slavery. Journal of Southern History 9 (February 1943): 75-93.
Gienapp, William E. The Crime Against Sumner: The Caning of Charles Sumner and the Rise of the Republican Party. Civil War History 25 (September 1979): 218-45.
Goldenberg, Barry M. The Unknown Architects of Civil Rights: Thaddeus Stevens, Ulysses S. Grant, and Charles Sumner. Los Angeles: Critical Minds Press, 2011.
Gradin, Harlan Joel. Losing Control: The Caning of Charles Sumner and the Breakdown of Antebellum Political Culture. Ph.D. dissertation, University of North Carolina, Chapel Hill, 1991.
Grimke, Archibald Henry. The Life of Charles Sumner, the Scholar in Politics. New York: Funk & Wagnalls Co., 1892.
Harsha, David Addison. The Life of Charles Sumner. New York: Dayton & Burdick, 1856.
Haynes, George Henry. Charles Sumner. Philadelphia: G.W. Jacobs & Co., 1909.
Hoffert, Sylvia D. The Brooks-Sumner Affair: Prelude to Civil War. Civil War Times Illustrated 11 (October 1972): 35-40.
Hull Hoffer, Williamjames. The Caning of Charles Sumner: Honor, Idealism, and the Origins of the Civil War. Baltimore: Johns Hopkins University Press, 2010.
Jager, Ronald B. Charles Sumner, the Constitution, and the Civil Rights Act of 1875. New England Quarterly 42 (September 1969): 350-72.
Kazarian, Richard, Jr. Working Radicals: The Early Political Careers of William Seward, Thaddeus Stevens, Henry Wilson, Charles Sumner, Salmon P. Chase, and Hannibal Hamlin. Ph.D. dissertation, Brown University, 1981.
Ledbetter, Bill. Charles Sumner: Political Activist for the New England Transcendentalists. Historian 44 (May 1982): 347-63.
Lester, Charles Edwards. Life and Public Services of Charles Sumner. New York: United States Publishing Co., 1874.
McCormick, Gregg M. Personal Conflict, Sectional Reaction: The Rule of Free Speech in the Caning of Charles Sumner." Texas Law Review 85:6 (May 2007): 1519-1552.
Nancarrow, Douglas Merrill. An Analysis of the Rhetorical and Historical Role Played by the Hon. Charles A. Sumner in the Ratification of the Treaty to Purchase Russian America. Ph.D. dissertation, Washington State University, 1980.
Nason, Elias. The Life and Times of Charles Sumner. Boston: B.B. Russell, 1874.
Palmer, Beverly Wilson, ed. From Small Minority to Great Cause: Letters of Charles Sumner to Salmon P. Chase. Ohio History 93 (Summer-Autumn 1984): 164-83.
___, ed. The Papers of Charles Sumner. Alexandria, VA: Chadwyck-Healey, 1988. Microfilm. 85 reels and guide.
___, ed. The Selected Letters of Charles Sumner. 2 vols. Boston: Northeastern University Press, 1990.
Peyton, Thomas Joseph, Jr. Charles Sumner and United States Foreign Relations During the American Civil War. Ph.D. dissertation, Georgetown University, 1972.
Pfau, Michael William. The Political Style of Conspiracy: Chase, Sumner, and Lincoln. East Lansing: Michigan State University Press, 2005.
Pierce, Edward Lillie. Memoirs and Letters of Charles Sumner. 4 vols. 1877-1894. Reprint. New York: Arno Press, 1969.
Pierson, Michael D. All Southern Society is Assailed by the Foulest Charges: Charles Sumners The Crime Against Kansas and the Escalation of Republican Anti-slavery Rhetoric." The New England Quarterly LXVIII (December 1995): 531-557.
Ruchames, Louis. Charles Sumner and American Historiography. Journal of Negro History 38 (April 1953): 139-60.
Schurz, Carl. Charles Sumner, an Essay. Edited by Arthur Reed Hogue. 1951. Reprint. Westport, CT: Greenwood Press, 1972.
Shannon, Margaret. Charles Sumner and the Alaska Purchase." In Russian America: The Forgotten Frontier, edited by Barbara Sweetland Smith and Redmond J. Barnett, pp. 109-19. Tacoma: Washington State Historical Society, 1990.
Shotwell, Walter Gaston. Life of Charles Sumner. New York: T.Y. Crowell & Co., 1910.
Stocker, Glenn. Charles Sumners Rhetoric of Insult. Southern Speech Communication Journal 38 (Spring 1973): 223-34.
Storey, Moorfield. Charles Sumner. 1900. Reprint. New York: AMS Press, 1972.
Sumner, Charles. Charles Sumner: His Complete Works. 15 vols. 1870-1883. Reprint of 1900 ed. (20 vols.). New York: Negro Universities Press, 1969.
Taylor, Anne-Marie. Young Charles Sumner and the Legacy of the American Enlightenment, 1811-1851. Amherst: University of Massachusetts Press, 2001.
U.S. Congress. Memorial Addresses on the Life and Character of Charles Sumner (a Senator of Massachusetts). 43d Cong., 1st sess., 1873-1874. Washington: Government Printing Office, 1874.
Woods, Michael E. The Indignation of Freedom-Loving People: The Caning of Charles Sumner and Emotion in Antebellum Politics." Journal of Social History 44:3 (Spring 2011): 689-705.