{"nrhp_refnum":"89000648","name":"Oak Knoll","other_names":[],"category":"building","location":{"address":"17 Brooks St. (formerly 39 Oak Knoll)","address_restricted":false,"city":"Winchester","county":"Middlesex County","state":"MA","lat":42.44033458100006,"lon":-71.13862893299995,"geom_source":"nps_gis"},"listed_date":"1989-07-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Oak Knoll, also called the Lewis Parkhurst House, is a single-family house at 39 Oak Knoll in Winchester, Middlesex County, Massachusetts. It was built in 1891-92 on a knoll within a roughly four-acre lot, with a large carriage house behind it.","why_significant":"The nomination argues it is Winchester's finest remaining late 19th century estate and a transitional Queen Anne/Colonial Revival design with irregular massing and classical details. It is also tied to Lewis Parkhurst, a Ginn publishing company partner and civic leader described as 'the town's foremost citizen'. It meets criteria B and C.","narrative":"Oak Knoll is a large house at 39 Oak Knoll in Winchester, Massachusetts, built in 1891-92 for Lewis Parkhurst. It sits on a hilltop within an exceptionally large lot of about four acres, and a big carriage house with a cupola and living space stands behind it. The 2.5-story clapboard house has a steep slate hip roof, asymmetrically placed corbelled chimneys and two cross gables, mixing Queen Anne massing with Colonial Revival details such as a fan-and-sidelight entry, balustrades and a sunporch with fluted Doric columns. It is described as Winchester's finest remaining late 19th century estate. Parkhurst arrived in town in 1881, became high school principal, then principal partner in the Ginn publishing company. He served in the State Senate, helped found local banks, supported the hospital, town park and school projects, and chaired the World War I Committee on Public Safety. The Parkhurst School was later named for him.","period_of_significance":null,"architect_builder":"Architect unknown; built by Lewis Parkhurst","architectural_style":"Queen Anne/Colonial Revival","criteria":["B","C"],"status_note":"Present and original use is dwelling; no major alterations noted.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:00.651678-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/45/7918/63791845/content/electronic-records/rg-079/NPS_MA/89000648.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/89000648/dc3917fd05-800.webp","url_1600":"https://nationalhistoricalregister.com/media/89000648/dc3917fd05-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:WinchesterMA_OakKnoll.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:WinchesterMA_OakKnoll.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63791845","wikipedia":"https://en.wikipedia.org/wiki/Oak_Knoll_(Winchester,_Massachusetts)","wikidata":"https://www.wikidata.org/wiki/Q7073611"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/oak-knoll-89000648/"}