Glen Fern. Historical American Buildings Survey (HABS): The Plot Plan (1); First Floor and Second Plan (2); Third Floor and Cellar Plan (3); North and South Elevations (4); East and West Elevations (5); South Doors Main Building (6); Windows (7); Doors (8); Bedroom "D" and Living Room #1 (9); Bedroom "C" and Living Room #2 (10); Bedroom "A" and Library (11); Spring House and Barn (12). [12 sheets], n.d., Drawer: W13 and W14, Folder: 4. Wissahickon Valley Park Maps, Plans and Drawings, FP.2011.006. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/49539 Accessed April 20, 2025.