{"nrhp_refnum":"88002313","name":"Northumberland Historic District","other_names":["See Also:Priestley, Dr. Joseph, House (Cross Keys Inn)","Pries"],"category":"district","location":{"address":"Roughly bounded by Fourth and A Sts., North Shore RR and Wheatley Ave.","address_restricted":false,"city":"Northumberland","county":"Northumberland County","state":"PA","lat":40.88841971800005,"lon":-76.79374043437127,"geom_source":"nps_gis"},"listed_date":"1988-11-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Science","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A historic district in the borough of Northumberland, Northumberland County, Pennsylvania, laid out in a regular grid between the North and West branches of the Susquehanna River. It contains a mix of residential buildings from the late 18th century through the 1930s, along with a few commercial buildings, churches and a former grain mill.","why_significant":"The district is significant for its broad collection of residential architecture spanning Federal through early 20th-century styles, which the nomination says is the most consistent record of its kind in the county. It is also tied to Reverend Joseph Priestley, the English scientist who lived in Northumberland from 1794 and discovered carbon monoxide there, and whose house is a National Historic Landmark.","narrative":"Northumberland's historic district occupies a regular street grid between the North and West branches of the Susquehanna River, with houses dating from the 1790s to the 1930s. Its housing stock includes Federal, Greek Revival, Gothic Revival, Italianate, Second Empire, Queen Anne and Colonial Revival examples, mostly brick and frame. The Joseph Priestley House, built in 1797 of lumber dried on site, is a frame Federal house that is a National Historic Landmark. Priestley lived here during his last decade and conducted experiments, including the discovery of carbon monoxide. The town also developed as a canal and river junction after the Pennsylvania Canal reached it in the 1830s, which shaped its commercial and hotel buildings. The district is valued for the range of its residential architecture, which the nomination describes as broader than that of neighbouring Sunbury or Milton. Of 236 buildings, 73 are noncontributing.","period_of_significance":"1794-1938","architect_builder":null,"architectural_style":"Federal, Queen Anne, Italianate","criteria":["A","B","C"],"status_note":null,"vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.383457-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88002313.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88002313/dca580b482-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88002313/dca580b482-1600.webp","licence":"CC BY-SA 3.0","author":"User:Ruhrfisch","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Priestley_Memorial_Chapel.jpg\" rel=\"noopener\">User:Ruhrfisch</a>, <a href=\"http://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:Priestley_Memorial_Chapel.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71996822","wikipedia":"https://en.wikipedia.org/wiki/Northumberland_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q3344246"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/northumberland-county/northumberland-historic-district-88002313/"}