ArchitectCharles Sumner FrostAmerican architect (1856–1931), 1856–1931Photograph of one of their buildings · Tim Pierce · CC BY-SA 3.0 · Wikimedia Commons3 buildingsUnited StatesFurther readingWikipedia article↗BuildingsMaine State BuildingPoland, United StatesOconomowoc Milwaukee Road depotOconomowoc, United StatesUnion DepotAshland, United States