- The Southern Dream of a Caribbean Empire, 1854-1861: With a New Preface (New Perspectives on the History of the South)
- Manifest Destiny's Underworld: Filibustering in Antebellum America
- The Union, the Confederacy, and the Atlantic Rim
- Slavery, Race, and Conquest in the Tropics: Lincoln, Douglas, and the Future of Latin America
- Howard Pyle: Imagining an American School of Art