Philadelphia History: Philadelphia Past and Present: A Brief Description of its historic sites and a guide to their location, presented for your pleasure and convenience during the biennial convention of the National nursing organizations held at Philadelphia, May 13-17, 1940 by 1940 W.B. Saunders Co., 1940, Shelf: 7. Books and Bound Manuscripts, FP.2016.004. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/13822 Accessed June 09, 2025.