Greg Hise is Associate Professor of Urban History and Planning at the University of Southern California and author of Magnetic Los Angeles: Planning the Twentieth-Century Metropolis (1997) and co-editor of Rethinking Los Angeles (1996). William Deverell is Professor of History at the University of Southern California and Director of the Huntington-USC Institute on California and the West. He is the author of Railroad Crossing: Californians and the Railroad, 1850-1910 (California, 1994), coeditor of California Progressivism Revisited (California, 1994), and coeditor of Metropolis in the Making: Los Angeles in the 1920s (California, 2001).