{"nrhp_refnum":"85001041","name":"Proctor, William, House","other_names":[],"category":"building","location":{"address":"390 Massachusetts Ave.","address_restricted":false,"city":"Arlington","county":"Middlesex County","state":"MA","lat":42.41270415300005,"lon":-71.16175150299995,"geom_source":"nps_gis"},"listed_date":"1985-04-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A Second Empire house at 390 Massachusetts Avenue, on the corner of Avon Place in Arlington, Massachusetts, built around 1870 by an unknown architect.","why_significant":"The house is a highly visible local landmark and a rare example of the Second Empire style in Arlington. It is also associated with William Proctor, a Boston bank teller and early commuter, whose son of the same name was a Boston architect with the firm Gay and Proctor. The form finds it retains integrity and meets criteria B and C.","narrative":"Standing at the corner of Massachusetts Avenue and Avon Place in Arlington, this house dates from about 1870 and is one of the town's few examples of Second Empire design. Its symmetrical rectangular form, patterned shingle roof, elaborate dormers and decorative brackets under the eaves mark the style, while the front porch, with saw-cut posts supporting a transom with cross boards, shows a Stick Style influence. The clapboard house has no outbuildings, has not been moved and has seen no major alterations. It was owned for many years by William Proctor, a teller at the Faneuil Hall Bank in Boston, who was among a growing number of commuters settling in Arlington. His son, also William, became a distinguished Boston architect and partner in Gay and Proctor, a firm that designed many Arlington buildings. The house was listed for its association with the Proctor family and for its distinctive, well-preserved architecture.","period_of_significance":null,"architect_builder":null,"architectural_style":"Second Empire","criteria":["B","C"],"status_note":"Present use is residential; no major alterations and not moved.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:56.200681-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/44/7912/63791244/content/electronic-records/rg-079/NPS_MA/85001041.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/85001041/6dec7553bf-800.webp","url_1600":"https://nationalhistoricalregister.com/media/85001041/6dec7553bf-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:ArlingtonMA_WilliamProctorHouse.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:ArlingtonMA_WilliamProctorHouse.jpg"},"district":{"nrhp_refnum":"85002691","name":"Arlington Center Historic District (Boundary Increase)","url":"https://nationalhistoricalregister.com/districts/massachusetts/arlington-center-historic-district-boundary-increase-85002691/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63791244","wikipedia":"https://en.wikipedia.org/wiki/William_Proctor_House_(Arlington,_Massachusetts)","wikidata":"https://www.wikidata.org/wiki/Q8017110"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/proctor-william-house-85001041/"}