D. at Brown University); specializes in the Early National period, Antebellum U.S., popular culture, politics, gender, and military history. She also directs the Rosenfield Program in Public Affairs, International Relations, and Human Rights. Books include: Sealed with Blood: War, Sacrifice, and Memory in Revolutionary America (University of Pennsylvania Press, 2002), The Early National Period (Facts on File, 2004), and The Encyclopedia of Battles in North America, 1517-1916 (Facts on File, 2000).