Richard S. Dunn is Roy F. and Jeannette P. Nichols Professor Emeritus of American History at the University of Pennsylvania. Among his publications are Sugar and Slaves in 1972; The Papers of William Penn, edited with Mary Maples Dunn, in four volumes published in 1981�e"1987; and The Journal of John Winthrop, edited with Laetitia Yeandle, published in 1996. He also designed the McNeil Center for Early American Studies at the University of Pennsylvania and was its founding director.