David Gilson De Long is professor of architecture at the University of Pennsylvania where he served as chair of the Graduate Program in Historic Preservation, 1984–97, and associate dean of Graduate School of Fine Arts, 1992–94.
David Gilson De Long is professor of architecture at the University of Pennsylvania where he served as chair of the Graduate Program in Historic Preservation, 1984–97, and associate dean of Graduate School of Fine Arts, 1992–94.