U.S. History: Borderlands, international borders, history of the federal government, bureaucratic politics, and civil-military relations.
World History: History of Engineering; History of Science; History of Technology; Naval history; Military history; History of the American Revolution; History of the Scientific Revolution; Latin American history; Naval architecture; Naval ship design; Defense acquisition; Systems engineering; Complex systems management
World History: Urban history; material culture studies; historic preservation
World History: Abraham Lincoln, American Civil War, Nineteenth Century America and Europe, Military History, Antebellum South, Digital History, Agricultural History
U.S. History: Digital History, Oral History, Historiography, Archives and Libraries
European History: Britain, Ireland, 19th and 20th century Europe, Anglo-American relations
European History: Byzantium, Crusades, social history, historiography
European History: The British Empire, Nationalism, Early Modern Europe, Public History
U.S. History: American history, historic preservation, National Park Service, historical archaeology
U.S. History: American politics and culture, history of conservatism, media history, U.S. and the world
World History: Late Antique and Medieval Mediterranean, Byzantium, cultural and social identities
European History: Late Antiquity, Byzantine Studies, Greek Cultural History