See his letters, ed. by R. W. Johannsen (1961); biographies by A. Johnson (1908, repr. 1970), G. M. Capers (1959), R. W. Johannsen (1973), and M. H. Quitt (2012); G. F. Milton, The Eve of Conflict: Stephen A. Douglas and the Civil War (1934, repr. 1963); D. Wells, Stephen Douglas: The Last Years (1970); A. C. Guelzo, Lincoln and Douglas: The Debates That Defined America (2008); F. M. Bordewich, America's Great Debate: Henry Clay, Stephen A. Douglas, and the Compromise That Preserved the Union (2012); J. Burt, Lincoln's Tragic Pragmatism: Lincoln, Douglas, and Moral Conflict (2012).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.