{"nrhp_refnum":"10000057","name":"Groton High School","other_names":["Prescott School","Groton Junior High School","Butler School"],"category":"building","location":{"address":"145 Main St.","address_restricted":false,"city":"Groton","county":"Middlesex County","state":"MA","lat":42.60689748300007,"lon":-71.57016870999996,"geom_source":"nps_gis"},"listed_date":"2010-03-02","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Community Planning and Development","Education"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story, flat-roofed brick school at 145 Main Street in Groton center, Massachusetts, built in 1927-1928 by rebuilding and enlarging the 1871 Butler School, to designs by Haynes & Mason of Fitchburg.","why_significant":"The building reflects Groton's shift from district schools to centralized schooling and its growing need for a larger high school with an auditorium-gymnasium and specialized teaching rooms. It is a Colonial Revival school by Haynes & Mason, with a largely unchanged exterior and interior layout since 1928. The text provided is truncated, so the full significance argument and criteria are not visible.","narrative":"Groton High School, at 145 Main Street in the center of Groton, Massachusetts, is a two-story brick school in the Colonial Revival style. It was created in 1927-1928 when the firm of Haynes & Mason of Fitchburg rebuilt and expanded the 1871 Butler School, part of whose core survives in the center section. The symmetrical front has large multi-paned windows, cast stone trim, and a pedimented center pavilion with a wooden Corinthian entrance surround. A gymnasium wing extends behind. Inside, wide hallways with maple floors, pressed-metal ceilings and original stair railings remain. The school grew out of years of crowding at the Butler building, where grades shared space with the high school and there was no auditorium for assemblies. It opened in the fall of 1928 with classrooms, laboratories, commercial and manual training rooms, a cafeteria and an auditorium-gymnasium. The site also includes a 1928 flagpole and a 1930 tercentenary marker. The building still serves educational purposes.","period_of_significance":null,"architect_builder":"Haynes & Mason of Fitchburg","architectural_style":"Colonial Revival","criteria":[],"status_note":"Current use is educational classrooms and administrative space; the building was most recently the Col. William Prescott School, and all window sash were replaced in 2005.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:05.219186-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/94/7957/63795794/content/electronic-records/rg-079/NPS_MA/10000057.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/10000057/a20418dd7d-800.webp","url_1600":"https://nationalhistoricalregister.com/media/10000057/a20418dd7d-1600.webp","licence":"CC BY-SA 4.0","author":"John Phelan","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Groton_High_School,_Groton_MA.jpg\" rel=\"noopener\">John Phelan</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:Groton_High_School,_Groton_MA.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63795794","wikipedia":"https://en.wikipedia.org/wiki/Groton_High_School_(Groton,_Massachusetts)","wikidata":"https://www.wikidata.org/wiki/Q15713125"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/groton-high-school-10000057/"}