James Oliver Horton is Benjamin Banneker Professor Emeritus of American Studies and History at George Washington University and Historian Emeritus of the Smithsonian Institution's National Museum of American History. Lois E. Horton retired as professor of sociology at George Mason University. The two have collaborated most recently on Slavery and Public History: The Tough Stuff of American Memory and Slavery and the Making of American History, the companion book to the PBS series of the same name.