Benjamin H. Johnson is Associate Professor of History and Associate Director of the Clements Center for Southwest Studies at Southern Methodist University. He is the author of Bordertown: The Odyssey of an American Place and Revolution in Texas: How a Forgotten Rebellion and Its Bloody Suppression Turned Mexicans into Americans.
Andrew R. Graybill is Associate Professor of History at the University of Nebraska, Lincoln. He is the author of Policing the Great Plains: Rangers, Mounties, and the North American Frontier, 1875-1910.