{"nrhp_refnum":"76001604","name":"Sally Ann Furnace Complex","other_names":[],"category":"building","location":{"address":"SW of Topton, Rockland Township","address_restricted":false,"city":"Topton","county":"Berks County","state":"PA","lat":40.47194405300007,"lon":-75.72251779699997,"geom_source":"nps_gis"},"listed_date":"1976-08-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"The Sally Ann Furnace complex is a former iron plantation near Topton in Berks County, Pennsylvania, built around an iron furnace established in 1791 along Sacony Creek. Its surviving features include the 1814 mansion house, a c. 1820 stone store and storekeeper's residence, and a stone granary.","why_significant":"The nomination argues the complex was a major link in eastern Pennsylvania's iron industry in the first half of the nineteenth century, and that its mansion house is one of the most imposing and architecturally significant houses in Berks County. It cites the Hunter family's ironmaking enterprise and the furnace's wartime production of cannonballs for the Union Army.","narrative":"Sally Ann Furnace is an iron plantation in Topton, Berks County, built around a furnace established by Valentine Eckert in 1791 beside Sacony Creek. At its height in the 1820s the estate covered 450 acres and included about 20 buildings, employing 150 men in furnace and farm work. Under the Hunter family, the furnace produced about 30 tons of pig iron weekly in the late 1820s, and it manufactured cannonballs for the Union Army during the Civil War. The furnace closed in 1869 and reopened for only two years about a decade later. Most industrial structures survive only as ruins. The mansion house, begun in 1814 by Jacob Hunter for his bride, is a 2½ story stuccoed stone building with five bays, six-over-six sash windows, a sunburst transom, and circular attic windows. Its interior retains heart hemlock woodwork and English hardware, and it is regarded as one of the most architecturally significant houses in the county. The c. 1820 stone store and the granary also remain.","period_of_significance":"1800-1899","architect_builder":null,"architectural_style":null,"criteria":["A","C"],"status_note":"The mansion house was restored in the 1920s and is in excellent condition; most industrial buildings are reduced to ruins or foundations.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.230137-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/76001604.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001604/cc7aa2b25b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001604/cc7aa2b25b-1600.webp","licence":"CC BY-SA 4.0","author":"Jerrye &amp; Roy Klotz, MD","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:SALLY_ANN_FURNACE_COMPLEX,_ROCKLAND_TWP._BERKS_COUNTY.jpg\" rel=\"noopener\">Jerrye &amp;amp; Roy Klotz, MD</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:SALLY_ANN_FURNACE_COMPLEX,_ROCKLAND_TWP._BERKS_COUNTY.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998366","wikipedia":"https://en.wikipedia.org/wiki/Sally_Ann_Furnace_Complex","wikidata":"https://www.wikidata.org/wiki/Q7405043"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/berks-county/sally-ann-furnace-complex-76001604/"}