1. Jeremy Atack is Professor of Economics Emeritus, Vanderbilt University, Nashville, Tennessee. Research Associate, National Bureau of Economic Research, Cambridge, Massachusetts.
2. Robert A. Margo is Professor of Economics, Boston University, Boston, Massachusetts. Research Associate, National Bureau of Economic Research, Cambridge, Massachusetts.
3. Paul W. Rhode is Professor of Economics, University of Michigan, Ann Arbor, Michigan. Research Associate, National Bureau of Economic Research, Cambridge, Massachusetts.