Topographic plan in the vicinity of Spring Garden Street bridge, Aquarium Drive, and East River Driver, also featuring the locations of the Italian Fountain, Aquarium, and Public Boathouse, 1938, 39., Drawer: WPA-4. Works Progress Administration Map Collection, FP.2012.008. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/1081 Accessed December 28, 2025.