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Drawn with the Sword: Reflections on the American Civil War. New York: Oxford University Press, 1996.
For Cause and Comrades: Why Men Fought in the Civil War. New York: Oxford University Press, 1997.
Is Blood Thicker than Water?: Crises of Nationalism in the Modern World. Toronto: Vintage Canada, c1998.
Crossroads of Freedom: Antietam. Oxford; New York: Oxford University Press, 2002.
The Boys in Blue and Gray. New York: Atheneum Books for Young Readers, c2002.
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This Mighty Scourge. New York: Oxford University Press, 2007.
Tried by War: Abraham Lincoln as Commander in Chief, 2008.
Abraham Lincoln. Oxford University Press, 2009.
Note
^Brennan, Elizabeth A.; Elizabeth C. Clarage (1999). Who's who of Pulitzer Prize Winners. Westport, CT: Greenwood Publishing Group. ISBN 1573561118. pag 319