ArchitectWilliam C. KnightonAmerican architect (1867–1938), 1867–1938Photograph of one of their buildings · Ian Poellet · CC BY-SA 3.0 · Wikimedia Commons3 buildingsUnited StatesFurther readingWikipedia article↗BuildingsPackard Service BuildingPortland, United StatesRoseburg National Guard ArmoryRoseburg, United StatesTrinity Place ApartmentsPortland, United States