George Washington (1896), A History of the American People (5 vols., 1902), Constitutional Government in the United States (1908), Papers of Woodrow Wilson (1966–), ed. by Arthur S. Link, et al.
Professor Clements is a Distinguished Professor of History, Emeritus at the University of South Carolina. His writings include:
Woodrow Wilson (Co-authored with Eric A. Cheezum, American President Reference Series, Congressional Quarterly Press, 2003)
The Presidency of Woodrow Wilson (University Press of Kansas, 1992)
Woodrow Wilson: World Statesman (Twayne Publishers, 1987)