{"nrhp_refnum":"89002393","name":"O'Connor, James-John Trybowski Three-Decker","other_names":[],"category":"building","location":{"address":"21 Canton St.","address_restricted":false,"city":"Worcester","county":"Worcester County","state":"MA","lat":42.24897364200007,"lon":-71.80231626099999,"geom_source":"nps_gis"},"listed_date":"1990-02-09","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","European","Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A three-decker residential building at 21 Canton Street in the Island neighborhood of Worcester, Massachusetts, built around 1914 by an unknown architect.","why_significant":"It is tied to the growth of the Island neighborhood as a multi-family, working-class district that was first Irish-dominated and later saw Polish and Lithuanian families move in during the early 20th century. It is also an unusually well-preserved, representative example of Colonial Revival three-decker construction. It meets criteria A and C at the local level.","narrative":"Built around 1914 at 21 Canton Street in Worcester, this three-decker belongs to a row of similar houses facing Crompton Park, one of two working-class parks the city created on the East Side in 1886. It stands in the last part of the Island neighborhood to be developed. The wood-clad building has wide shingle bands between stories, a side-hall plan, a three-tier porch on heavy square columns, a curved three-story bay window, and a hip roof with bracketed eaves. Its first known owners were James and Mary O'Connor, and early tenants were Irish workers in unskilled or semi-skilled jobs. By the 1920s, John Trybowski, an elevator operator, owned and lived in the house, and later residents included Polish and other workers, reflecting the change in the district from Irish to Polish and Lithuanian families. Its well-preserved Colonial Revival detailing and its link to neighborhood change support its local significance.","period_of_significance":null,"architect_builder":null,"architectural_style":"Colonial Revival","criteria":["A","C"],"status_note":"Present use is residential; condition is described as very good with no major alterations.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:00.037558-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/13/7933/63793313/content/electronic-records/rg-079/NPS_MA/89002393.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/89002393/96d75e7e47-800.webp","url_1600":"https://nationalhistoricalregister.com/media/89002393/96d75e7e47-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:WorcesterMA_OConnorTrybowskiThreeDecker.jpg\" rel=\"noopener\">User:Magicpiano</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:WorcesterMA_OConnorTrybowskiThreeDecker.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63793313","wikipedia":"https://en.wikipedia.org/wiki/James_O%27Connor-John_Trybowski_Three-Decker","wikidata":"https://www.wikidata.org/wiki/Q6140456"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/worcester-county/oconnor-james-john-trybowski-three-decker-89002393/"}