ArchitectR. H. RobertsonAmerican architect (1849–1919), 1849–1919Photograph of one of their buildings · Nyjockboy2 (talk)Nyjockboy2 · Public domain · Wikimedia Commons2 buildingsUnited StatesFurther readingWikipedia article↗BuildingsPark Row BuildingManhattan, United StatesPequot LibraryConnecticut, United States