[Letter to "Colonel of the Guard, Lake Union Hangar" from William E. Boeing]

Boeing, William Edward, 1881-1956, [Letter to "Colonel of the Guard, Lake Union Hangar" from William E. Boeing], [2005-10-06-B_text_138]. Museum of Flight Digital Collections, accessed 09/02/2026, https://digitalcollections.museumofflight.org/nodes/view/8673