William Atto is Associate Professor of American History at the University of Dallas, Irving, TX, where he teaches courses in 19th century America and U.S. military history. He has taught in the MAHG Program at Ashland University since 2006, offering a course on American Progressivism with Dr. R.J. Pestritto. He is the editor (also with Pestritto) of American Progressivism: A Reader. Lexington Press, May 2008. His current research is focused on the thought of Orestes A. Brownson.