Entrance Arch, Michigan Boulevard, 31st Triennial Conclave postcard, 1910, A1994-079-021, Box: 2. Scottish Rite Masonic Museum & Library.
Entrance Arch, Michigan Boulevard, 31st Triennial Conclave postcard, 1910, A1994-079-021, Box: 2. Scottish Rite Masonic Museum & Library. https://srmml.libraryhost.com/repositories/2/resources/4697 Accessed December 24, 2025.
