{"nrhp_refnum":"78002406","name":"Clark, Silas M., House","other_names":["Clark Memorial Hall","History House"],"category":"building","location":{"address":"6th St. and Wayne Ave.","address_restricted":false,"city":"Indiana","county":"Indiana County","state":"PA","lat":40.620098066000025,"lon":-79.15101334599996,"geom_source":"nps_gis"},"listed_date":"1978-06-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story brick house in Indiana, Pennsylvania, built in 1869-70 for Silas M. Clark in the Italian villa manner, now known as Clark Memorial Hall.","why_significant":"The nomination argues the building is significant for its Italian villa architecture and for its association with Silas M. Clark, a Pennsylvania Supreme Court justice and founder of the Normal School of Indiana. The house later served as a county soldiers' memorial hall and as American Red Cross headquarters from 1918 to 1930, a focal point for war and disaster relief in the county.","narrative":"Built in 1869-70 for lawyer and jurist Silas M. Clark, this three-story brick house in Indiana, Pennsylvania follows the Italian villa manner, with round-headed windows, a central tower, bracketed cornices and large brick quoins. Two one-story wooden porches on the north and east sides were enlarged after construction. In 1920 interior walls, a main stairway and several fireplaces were removed, though a marble and tile fireplace in the former parlor survives. The property adjoins the approximate route of the Kittanning Path and the town's first cemetery, and earlier it formed part of the Indiana Seminary grounds that Clark attended. Clark, born in 1834, became an associate justice of the Supreme Court of Pennsylvania and was a founder of the Normal School of Indiana, now Indiana University of Pennsylvania. The building served as a county soldiers' memorial hall and as American Red Cross headquarters from 1918 to 1930. Since 1951 it has housed the Indiana County Historical and Genealogical Society.","period_of_significance":"1800-1899","architect_builder":null,"architectural_style":"Italian villa","criteria":[],"status_note":"In good condition and occupied by the Indiana County Historical and Genealogical Society, which hopes to restore and maintain it in its original character.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.703267-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/78002406.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/78002406/4bdb11a54d-800.webp","url_1600":"https://nationalhistoricalregister.com/media/78002406/4bdb11a54d-1600.webp","licence":"CC BY-SA 3.0","author":"Canadian2006","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Indiana_Pennsylvania_Clark_House.jpg\" rel=\"noopener\">Canadian2006</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Indiana_Pennsylvania_Clark_House.jpg"},"district":{"nrhp_refnum":"93000366","name":"Downtown Indiana Historic District","url":"https://nationalhistoricalregister.com/districts/pennsylvania/downtown-indiana-historic-district-93000366/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995934","wikipedia":"https://en.wikipedia.org/wiki/Silas_M._Clark_House","wikidata":"https://www.wikidata.org/wiki/Q7514191"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/indiana-county/clark-silas-m-house-78002406/"}