ArchitectEdward ClarkAmerican architect (1822–1902), 1822–1902Photograph of one of their buildings · user:Sebmol · Public domain · Wikimedia Commons2 buildingsUnited StatesFurther readingWikipedia article↗BuildingsRussell Senate Office BuildingWashington, D.C., United StatesUnited States CapitolWashington, D.C., United States