David J. Coles, professor of history at Longwood University, is the associate editor of the Encyclopedia of Civil War, coauthor of Sons of Garibaldi in Blue and Gray, and coeditor of the Encyclopedia of the American Civil War. Stephen D. Engle, professor of history at Florida Atlantic University, is the author of Yankee Dutchman: The Life of Franz Sigel, Don Carlos Buell: Most Promising of All, and Struggle for the Heartland: The Campaigns from Fort Henry to Corinth.