Resolution of the Board directing the Committee on Plans and Improvements to report a plan for laying a passenger railway the entire length of Belmont Avenue and that the Committee also report the probably expense and best mode of conducting the same, 1873 April 12, Drawer: 8.3. History Files, FP.2010.001.006. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/405856 Accessed April 20, 2025.