John Emerson
E828208
John Emerson was a 19th-century U.S. Army surgeon best known as the enslaver of Dred Scott, whose lawsuit led to the infamous Dred Scott v. Sandford Supreme Court decision.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John Emerson canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9895026 — 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: John Emerson Context triple: [Dred Scott, enslaver, John Emerson]
-
A.
John Emory
John Emory was a 19th-century American Methodist bishop after whom Emory College (now Emory University) was named.
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B.
John Emery
John Emery was an American stage, film, and television actor active in the mid-20th century, often cast in sophisticated or villainous supporting roles.
-
C.
Joe DuBois
Joe DuBois is a central character in the supernatural drama series "Medium," portrayed as Allison DuBois's supportive and pragmatic husband who balances family life with her psychic crime-solving work.
-
D.
John Hailey
John Hailey was a 19th-century Idaho pioneer, businessman, and politician whose contributions to the region’s early development led to the city of Hailey, Idaho being named in his honor.
-
E.
John Dunlavy
John Dunlavy was an early 19th-century American religious leader and writer involved in the dissolution of the Springfield Presbytery and later known for his association with the Shaker movement.
- 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: John Emerson Target entity description: John Emerson was a 19th-century U.S. Army surgeon best known as the enslaver of Dred Scott, whose lawsuit led to the infamous Dred Scott v. Sandford Supreme Court decision.
-
A.
John Emory
John Emory was a 19th-century American Methodist bishop after whom Emory College (now Emory University) was named.
-
B.
John Emery
John Emery was an American stage, film, and television actor active in the mid-20th century, often cast in sophisticated or villainous supporting roles.
-
C.
Joe DuBois
Joe DuBois is a central character in the supernatural drama series "Medium," portrayed as Allison DuBois's supportive and pragmatic husband who balances family life with her psychic crime-solving work.
-
D.
John Hailey
John Hailey was a 19th-century Idaho pioneer, businessman, and politician whose contributions to the region’s early development led to the city of Hailey, Idaho being named in his honor.
-
E.
John Dunlavy
John Dunlavy was an early 19th-century American religious leader and writer involved in the dissolution of the Springfield Presbytery and later known for his association with the Shaker movement.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
United States Army officer
ⓘ
person ⓘ surgeon ⓘ |
| associatedWith |
Dred Scott
ⓘ
Dred Scott v. Sandford ⓘ Irene Emerson ⓘ |
| causeOfNotability |
role in American slavery history
ⓘ
role in pre–Civil War legal controversies ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employedBy | United States Army ⓘ |
| fieldOfWork |
medicine
ⓘ
military medicine ⓘ |
| hasEnslavedPerson | Dred Scott ⓘ |
| hasLegalCase | Dred Scott v. Sandford ⓘ |
| historicalContext |
antebellum United States
ⓘ
linked to:
Antebellum period
|
| legalStatusInDredScottCase | former enslaver of the plaintiff ⓘ |
| militaryBranch | United States Army ⓘ |
| notableFor |
being the enslaver of Dred Scott
ⓘ
involvement in events leading to Dred Scott v. Sandford ⓘ |
| occupation | U.S. Army surgeon ⓘ |
| participatedIn | events leading to the Dred Scott freedom suits ⓘ |
| placeOfActivity |
United States
ⓘ
linked to:
United States of America
|
| residence |
Illinois
ⓘ
Missouri ⓘ Wisconsin Territory ⓘ |
| spouse | Irene Emerson ⓘ |
| timePeriod | 19th century ⓘ |
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: John Emerson Description of subject: John Emerson was a 19th-century U.S. Army surgeon best known as the enslaver of Dred Scott, whose lawsuit led to the infamous Dred Scott v. Sandford Supreme Court decision.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.