Title: Dr. DeWitt Ludlum in Later Years Abstract: Gladwyne Colony/Ludlum, Dr. S. DeWitt Source: DeWitt Ludlum Family Collection Binder: 2 Collection: W. Robert Swartz This photo and many others may be found in The First 300: The Amazing and Rich History of Lower Merion, which may be purchased through Diane Publishing Company or in Lower Merion area book stores.