{"nrhp_refnum":"88002311","name":"Penn Treaty Junior High School","other_names":[],"category":"building","location":{"address":"600 E. Thompson St.","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.972587298000064,"lon":-75.12726077299999,"geom_source":"nps_gis"},"listed_date":"1988-11-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Education","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A four-story brick school building with a raised brick basement at 600 East Thompson Street, Philadelphia, built 1927-1928 by the School District of Philadelphia as a junior high school. It was designed by Irwin T. Catharine and follows the JHS-6 type in the Collegiate or Academic Gothic style.","why_significant":"The nomination argues the building is significant for its place in the history of education and school architecture in Philadelphia. It was one of a second generation of junior high schools built specifically for that purpose after the city adopted a 6-3-3 grade system. The form says it retains very good integrity.","narrative":"Built in 1927-1928 on a 1.3-acre site at 21st and Winter Streets, Penn Treaty Junior High School is a four-story brick building on a raised brick basement, designed by Irwin T. Catharine for the School District of Philadelphia. It was one of several junior high schools erected in the 1920s after the city separated its high schools into senior and junior high divisions, creating a 6-3-3 grade system. Catharine's second-generation design, known as type JHS-6, departed from the Georgian Revival style of his earlier junior highs and used Collegiate Gothic detailing, a vocabulary associated with older colleges in the eastern United States. The front facade has a large stone Gothic entranceway flanked by projecting end pavilions with carved limestone and a battlemented tower. The building is important for its role in the history of education and for its architecture, and it retains very good integrity.","period_of_significance":"1927-1928","architect_builder":"Irwin T. Catharine (architect)","architectural_style":"Late Gothic Revival","criteria":["A","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 17:11:36.327335-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88002311.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88002311/31e68f6f7a-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88002311/31e68f6f7a-1600.webp","licence":"CC BY-SA 2.0","author":"Eli Pousson","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Penn_Treaty_Junior_High_School.jpg\" rel=\"noopener\">Eli Pousson</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Penn_Treaty_Junior_High_School.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993747","wikipedia":"https://en.wikipedia.org/wiki/Penn_Treaty_School","wikidata":"https://www.wikidata.org/wiki/Q7163338"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/penn-treaty-junior-high-school-88002311/"}