Jeremiah Dixon
E497202
Jeremiah Dixon was an 18th-century English surveyor and astronomer best known for jointly establishing the Mason–Dixon line that later came to symbolize the cultural boundary between the northern and southern United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Jeremiah Dixon canonical | 2 |
| Surveyor General of Pennsylvania | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5150401 — 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: Jeremiah Dixon Context triple: [Charles Mason, coSurveyedWith, Jeremiah Dixon]
-
A.
William Ledyard
William Ledyard was an American Revolutionary War officer best known for his leadership and death during the 1781 British attack on Fort Griswold in Groton, Connecticut.
-
B.
Alan J. Schoolcraft
Alan J. Schoolcraft is an American screenwriter best known for co-writing the animated superhero comedy film "Megamind."
-
C.
George Jarvis
George Jarvis was an American-born philhellene who fought in the Greek War of Independence and became known for his dedication to the Greek cause.
-
D.
Michael Cresap
Michael Cresap was an 18th-century American frontiersman and militia captain known for his controversial role in early conflicts with Native Americans in the Ohio Valley.
-
E.
William Johnson
William Johnson was an early 19th-century Associate Justice of the U.S. Supreme Court known for his strong support of federal power and independent judicial reasoning.
- 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: Jeremiah Dixon Target entity description: Jeremiah Dixon was an 18th-century English surveyor and astronomer best known for jointly establishing the Mason–Dixon line that later came to symbolize the cultural boundary between the northern and southern United States.
-
A.
William Ledyard
William Ledyard was an American Revolutionary War officer best known for his leadership and death during the 1781 British attack on Fort Griswold in Groton, Connecticut.
-
B.
Alan J. Schoolcraft
Alan J. Schoolcraft is an American screenwriter best known for co-writing the animated superhero comedy film "Megamind."
-
C.
George Jarvis
George Jarvis was an American-born philhellene who fought in the Greek War of Independence and became known for his dedication to the Greek cause.
-
D.
Michael Cresap
Michael Cresap was an 18th-century American frontiersman and militia captain known for his controversial role in early conflicts with Native Americans in the Ohio Valley.
-
E.
William Johnson
William Johnson was an early 19th-century Associate Justice of the U.S. Supreme Court known for his strong support of federal power and independent judicial reasoning.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
18th-century scientist
ⓘ
cartographer ⓘ human ⓘ surveyor ⓘ |
| associatedWith | Mason–Dixon line as later cultural boundary between northern and southern United States ⓘ |
| birthDate | 1733-07-27 ⓘ |
| birthPlace | Cockfield, County Durham, England NERFINISHED ⓘ |
| burialPlace | Cockfield, County Durham, England NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of Great Britain ⓘ |
| deathDate | 1779-01-22 ⓘ |
| deathPlace | Cockfield, County Durham, England NERFINISHED ⓘ |
| educatedAt | local schools in County Durham ⓘ |
| employer |
Royal Astronomer Nevil Maskelyne
NERFINISHED
ⓘ
Royal Society NERFINISHED ⓘ |
| era | 18th century ⓘ |
| fieldOfWork |
astronomy
ⓘ
geodesy ⓘ land surveying ⓘ |
| hasLegacy |
Mason–Dixon line became symbolic boundary between free and slave states
ⓘ
subject of historical and literary works, including a novel by Thomas Pynchon ⓘ |
| hasNotableAchievement |
contributed to improved accuracy of North American maps
ⓘ
helped resolve colonial boundary disputes in British North America ⓘ |
| hasRelative |
George Dixon (father)
NERFINISHED
ⓘ
Mary Hunter Dixon (mother) NERFINISHED ⓘ |
| influenced | subsequent boundary surveying in the United States ⓘ |
| knownFor |
Mason–Dixon line
NERFINISHED
ⓘ
geodetic surveying ⓘ |
| memberOf | Quaker community in County Durham NERFINISHED ⓘ |
| name | Jeremiah Dixon NERFINISHED ⓘ |
| nationality | English ⓘ |
| notableWork | Survey of the Mason–Dixon line NERFINISHED ⓘ |
| occupation |
astronomer
ⓘ
cartographer ⓘ surveyor ⓘ |
| participatedIn |
1761–1762 South Atlantic expedition to observe the transit of Venus
ⓘ
survey of the boundary between Maryland and Delaware ⓘ survey of the boundary between Pennsylvania and Delaware ⓘ survey of the boundary between Pennsylvania and Maryland ⓘ |
| partnerInWorkWith | Charles Mason NERFINISHED ⓘ |
| religion | Quakerism NERFINISHED ⓘ |
| residence | Cockfield, County Durham, England NERFINISHED ⓘ |
| workedOn | measurement of a degree of meridian arc in South Africa (planned, not completed) ⓘ |
| workedPeriod |
1760s
ⓘ
1770s ⓘ |
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: Jeremiah Dixon Description of subject: Jeremiah Dixon was an 18th-century English surveyor and astronomer best known for jointly establishing the Mason–Dixon line that later came to symbolize the cultural boundary between the northern and southern United States.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Surveyor General of Pennsylvania