"Map Showing the Improvements on the West-Side of the River from Girard Avenue to George's Hill and Belmont, Made from the 28th of April to the 1st of December [1869]", circa 1869, Box: 1, Folder: 3. Annual Reports and Other Publications, FP.2010.001.001. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/397453 Accessed April 20, 2025.