Independence Square: Independence Square. Plan showing outlines of walks, and the buildings of Independence Hall, the court house, and the American Philosophical Society. [ID: 12B-579; PWD ERV: 1075962; Drawing No.: 7186], c. 1890, Drawer: N6, Folder: 1.1. Philadelphia Water Department 12B - Drawings Donation, FP.2019.002. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/4882 Accessed June 08, 2025.