Environmental Education Centers: Pre-Design Manual for Franklin Delano Roosevelt Park, Wissahickon Valley Park, Tacony Creek Park, and Strawberry Mansion with inserted images of existing conditions, c. 1999, Shelf: 15. Technical Reports, Manuals, Specs and Studies, FP.2010.001.004. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/396699 Accessed April 20, 2025.