Cornwall Iron Furnace
E708782
Cornwall Iron Furnace is a preserved 18th- and 19th-century iron-making complex in Cornwall, Pennsylvania, that showcases one of the most complete surviving charcoal-fueled blast furnaces in the United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cornwall Iron Furnace canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T8020600 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cornwall Iron Furnace Context triple: [Pennsylvania state historic sites, hasPart, Cornwall Iron Furnace]
-
A.
Brierfield Furnace
Brierfield Furnace is a historic 19th-century iron-producing blast furnace preserved within Brierfield Ironworks Historical State Park in Alabama.
-
B.
Hopewell Furnace National Historic Site
Hopewell Furnace National Historic Site is a preserved 18th–19th century iron-making community in Pennsylvania that interprets early American industry, technology, and rural life.
-
C.
Willey Ironworks
Willey Ironworks was an 18th-century English ironworks closely associated with industrialist John Wilkinson and the early development of the Industrial Revolution.
-
D.
Ynysfach Ironworks
Ynysfach Ironworks is a historic former ironworks in Merthyr Tydfil, Wales, that played a significant role in the town’s 19th-century iron and industrial heritage.
-
E.
Pine Grove Furnace State Park
Pine Grove Furnace State Park is a historic Pennsylvania state park in the South Mountain region known for its former iron furnace, lakes, hiking trails, and access to the Appalachian Trail.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cornwall Iron Furnace Target entity description: Cornwall Iron Furnace is a preserved 18th- and 19th-century iron-making complex in Cornwall, Pennsylvania, that showcases one of the most complete surviving charcoal-fueled blast furnaces in the United States.
-
A.
Brierfield Furnace
Brierfield Furnace is a historic 19th-century iron-producing blast furnace preserved within Brierfield Ironworks Historical State Park in Alabama.
-
B.
Hopewell Furnace National Historic Site
Hopewell Furnace National Historic Site is a preserved 18th–19th century iron-making community in Pennsylvania that interprets early American industry, technology, and rural life.
-
C.
Willey Ironworks
Willey Ironworks was an 18th-century English ironworks closely associated with industrialist John Wilkinson and the early development of the Industrial Revolution.
-
D.
Ynysfach Ironworks
Ynysfach Ironworks is a historic former ironworks in Merthyr Tydfil, Wales, that played a significant role in the town’s 19th-century iron and industrial heritage.
-
E.
Pine Grove Furnace State Park
Pine Grove Furnace State Park is a historic Pennsylvania state park in the South Mountain region known for its former iron furnace, lakes, hiking trails, and access to the Appalachian Trail.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
industrial heritage site ⓘ iron furnace ⓘ |
| architecturalStyle | vernacular industrial architecture ⓘ |
| builtBy | Peter Grubb ⓘ |
| constructionStart | 1742 ⓘ |
| coordinates | 40.273°N 76.412°W ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dateOfHeritageDesignation | 1966 ⓘ |
| fuelType | charcoal ⓘ |
| hasMuseum | yes ⓘ |
| hasPart |
blast furnace stack
ⓘ
boiler house ⓘ casting house ⓘ charging room ⓘ engine house ⓘ ore roasting sheds ⓘ workers’ housing (nearby) ⓘ |
| heritageDesignation |
National Historic Landmark
ⓘ
site on the National Register of Historic Places ⓘ |
| industry | ironmaking ⓘ |
| locatedIn | Cornwall, Pennsylvania ⓘ |
| locatedInAdministrativeEntity |
Lebanon County, Pennsylvania
ⓘ
Pennsylvania ⓘ |
| managedBy | Pennsylvania Historical and Museum Commission ⓘ |
| materialUsed |
brick
ⓘ
stone ⓘ |
| museumType | industrial museum ⓘ |
| nearbyFeature | Cornwall iron mines ⓘ |
| openToPublic | true ⓘ |
| operatedAs | charcoal-fueled blast furnace ⓘ |
| ownedBy |
Coleman family
ⓘ
Grubb family ⓘ |
| poweredBy | water power ⓘ |
| product |
cannon barrels
ⓘ
cannon shot ⓘ pig iron ⓘ |
| productionEnd | 1883 ⓘ |
| productionStart | 1742 ⓘ |
| rawMaterial |
charcoal
ⓘ
iron ore ⓘ limestone ⓘ |
| significance |
one of the most complete surviving charcoal-fueled blast furnaces in the United States
ⓘ
represents early American iron industry ⓘ |
| usedFor |
production of iron for the American Civil War
ⓘ
production of iron for the American Revolutionary War ⓘ |
| visitorActivities |
educational programs
ⓘ
guided tours ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Cornwall Iron Furnace Description of subject: Cornwall Iron Furnace is a preserved 18th- and 19th-century iron-making complex in Cornwall, Pennsylvania, that showcases one of the most complete surviving charcoal-fueled blast furnaces in the United States.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.