Pythian Castle in Frederick, Maryland postcard, circa 1915, A1994-129-001, Box: 1. Scottish Rite Masonic Museum & Library.
Pythian Castle in Frederick, Maryland postcard, circa 1915, A1994-129-001, Box: 1. Scottish Rite Masonic Museum & Library. https://srmml.libraryhost.com/repositories/2/resources/1910 Accessed September 07, 2025.
