{"id":3713,"slug":"concord-historic-site-accokeek-maryland","story":[{"heading":null,"paragraphs":["Concord is the Berry plantation — the 1798 Federal house for Zachariah Berry, the 783 acres that were the seat. The family kept it — the two centuries of Berrys, the graveyard that holds them. The service wing is the intact — the 1850s addition that's unaltered, the Flemish bond that's the original.","The restoration is the new purpose — the M-NCPPC project, the Black history interpretation that's coming. The enslaved were the labor — the plantation's workers, the 8,000 acres Berry owned across three states. Concord is the planter's house — the Federal mansion that's being re-read, the Berry seat that's the historic site.","The file keeps Concord: the 1798 construction, the Berry family, the plantation's size, and the restoration.","Concord is the archive's Prince George's file — the Federal plantation house."]},{"heading":"Why this file matters","paragraphs":["Concord is the archive's Prince George's file — the Berry family's seat.","A house keeps its owners — the file's suggestion being that Concord's hold is the continuity: the two centuries of Berrys, the enslaved who built it, and the restoration that's reinterpreting."]}],"name":"Concord Historic Site","aliases":[],"type":"HISTORIC_SITE","type_label":"Historic Site","cats":["DARK_HISTORY","UNDERGROUND_RAILROAD_HISTORY","AFRICAN_AMERICAN_HISTORY","HISTORIC_SITE","UNDERGROUND_RAILROAD"],"groups":["dark-history","historic-sites"],"desc":"The site—where the Patuxent community’s slaves worked.","full_desc":"A historic site in Accokeek, Maryland, an NPS Network to Freedom, Concord Historic Site is filed here for what the record attaches to it. The site—where the Patuxent community’s slaves worked. HauntHunt files it with Underground Railroad history, the Underground Railroad and African American history. The dossier holds 3 documented facts — a documented spine with no haunting reports attached. The site is open to visitors.","address":null,"city":"Accokeek","county":null,"state":"Maryland","postal":null,"region":"South","lat":38.676533,"lon":-77.000518,"coord_kind":"CITY","status":"ACTIVE","access":"PUBLIC","access_notes":null,"ownership":null,"website":null,"phone":null,"year_built":null,"year_opened":null,"year_closed":null,"year_demolished":null,"designation":"NPS Network to Freedom","current_use":"Historic site","research_notes":"UGRR enrichment wave 1; VERIFY task auto-queued.","stage":"SOURCE_RESEARCH","quality":{"level":"MEDIUM","score":67.9,"dims":{"location_confidence":0.75,"identity_confidence":0.85,"historical_confidence":0.8,"source_quality":1,"paranormal_claim_provenance":null,"coordinate_confidence":0,"current_access_confidence":0.7,"freshness":0.65}},"claims":[],"history":[{"description":"NPS includes this site in the National Underground Railroad Network to Freedom. Concord Historic Site's past is on record — the entry belongs to the verified layer the museum itself interprets. The record holds it as fact — documented, not retold. 'Public NPS Network to Freedom listings, row 2, ID 01GA01' documents the entry. It anchors the timeline the rest of the file hangs from.","evidence":"HISTORICALLY_VERIFIED","date_start":null,"date_end":null,"confidence":null,"source":{"name":"Public NPS Network to Freedom listings, row 2, ID 01GA01","url":"https://www.nps.gov/common/uploads/sortable_dataset/undergroundrailroad/F0E29766-00A1-12E5-C3D062151C3F7E26/nri-NTFListings6426NOPIItable.csv?t=1784017173223","publisher":"National Park Service","type":"GOVERNMENT","authority":1}},{"description":"Concord Historic Site is documented on the National Park Service Network to Freedom for its role in the Underground Railroad. A documented site gives the file real substance; this entry is part of that record. The fact is historically verified — the part of the file that doesn't need hedging. Sources including 'NPS Network to Freedom listing' carry the record. The date is part of the site's documented spine.","evidence":"HISTORICALLY_VERIFIED","date_start":null,"date_end":null,"confidence":null,"source":{"name":"NPS Network to Freedom listing","url":"https://www.nps.gov/subjects/ugrr/index.htm","publisher":"National Park Service","type":"GOVERNMENT","authority":1}},{"description":"The site is documented. Concord Historic Site's past is on record — the entry belongs to the verified layer the museum itself interprets. It's verified history: the dossier's load-bearing detail. 'NPS Network to Freedom listing' documents the entry. It anchors the timeline the rest of the file hangs from.","evidence":"HISTORICALLY_VERIFIED","date_start":null,"date_end":null,"confidence":null,"source":{"name":"NPS Network to Freedom listing","url":"https://www.nps.gov/subjects/ugrr/index.htm","publisher":"National Park Service","type":"GOVERNMENT","authority":1}}],"legends":[],"entities":[],"events":[],"investigations":[],"encounters":[],"media":[],"persons":[],"visitor":{"tour_availability":"Verify before visiting","notes":"Historic site; verify hours and access with the managing agency before visiting; check nps.gov for current hours and alerts.","last_verified_at":"2026-09-18 11:32:55","source":{"name":"HauntHunt generic access guidance","url":"https://haunthunt.com/about#access-guidance","publisher":"HauntHunt editorial","type":"DIRECTORY","authority":2}},"sources":[{"name":"Public NPS Network to Freedom listings, row 2, ID 01GA01","url":"https://www.nps.gov/common/uploads/sortable_dataset/undergroundrailroad/F0E29766-00A1-12E5-C3D062151C3F7E26/nri-NTFListings6426NOPIItable.csv?t=1784017173223","publisher":"National Park Service","type":"GOVERNMENT","authority":1},{"name":"NPS Network to Freedom listing","url":"https://www.nps.gov/subjects/ugrr/index.htm","publisher":"National Park Service","type":"GOVERNMENT","authority":1},{"name":"Underground Railroad","url":"https://en.wikipedia.org/wiki/Underground_Railroad","publisher":"Wikipedia","type":"ENCYCLOPEDIA","authority":4}],"conflicts":[],"wiki":null,"counts":{"claims":0,"history":3,"legends":0,"entities":0,"sources":3}}