Gary Duncan
E670119
Gary Duncan was the African American teenager whose criminal case led to the landmark U.S. Supreme Court decision in Duncan v. Louisiana, which incorporated the right to a jury trial against the states.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gary Duncan canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7520297 — 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: Gary Duncan Context triple: [Duncan v. Louisiana, petitioner, Gary Duncan]
-
A.
Andrew Duncan
Andrew Duncan was a British industrialist and politician who served as the United Kingdom’s Minister of Supply during the Second World War.
-
B.
Jim Gillespie
Jim Gillespie is a Scottish film director best known for helming the 1997 teen slasher hit "I Know What You Did Last Summer."
-
C.
Bill Gillespie
Bill Gillespie is the white, small-town Mississippi police chief whose uneasy but evolving partnership with Black detective Virgil Tibbs drives the racial and social tensions at the heart of "In the Heat of the Night."
-
D.
Bill Baillie
Bill Baillie was a prominent New Zealand middle- and long-distance runner known for his competitive performances during the 1950s and 1960s.
-
E.
Duncan Stewart
Duncan Stewart is a music producer best known for his work on U2’s album "Songs of Surrender."
- 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: Gary Duncan Target entity description: Gary Duncan was the African American teenager whose criminal case led to the landmark U.S. Supreme Court decision in Duncan v. Louisiana, which incorporated the right to a jury trial against the states.
-
A.
Andrew Duncan
Andrew Duncan was a British industrialist and politician who served as the United Kingdom’s Minister of Supply during the Second World War.
-
B.
Jim Gillespie
Jim Gillespie is a Scottish film director best known for helming the 1997 teen slasher hit "I Know What You Did Last Summer."
-
C.
Bill Gillespie
Bill Gillespie is the white, small-town Mississippi police chief whose uneasy but evolving partnership with Black detective Virgil Tibbs drives the racial and social tensions at the heart of "In the Heat of the Night."
-
D.
Bill Baillie
Bill Baillie was a prominent New Zealand middle- and long-distance runner known for his competitive performances during the 1950s and 1960s.
-
E.
Duncan Stewart
Duncan Stewart is a music producer best known for his work on U2’s album "Songs of Surrender."
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
African American
ⓘ
criminal defendant ⓘ person ⓘ |
| amendmentInvolved |
Fourteenth Amendment to the United States Constitution
NERFINISHED
ⓘ
Sixth Amendment to the United States Constitution NERFINISHED ⓘ |
| appealedTo | Supreme Court of the United States NERFINISHED ⓘ |
| caseCitation | Duncan v. Louisiana, 391 U.S. 145 (1968) NERFINISHED ⓘ |
| caseOutcomeAtSupremeCourt | conviction reversed ⓘ |
| constitutionalRightInvolved | right to a jury trial ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| ethnicity | African American ⓘ |
| hasRole | petitioner in Duncan v. Louisiana ⓘ |
| historicalSignificance |
central figure in a landmark incorporation case
ⓘ
helped establish that serious criminal offenses in state courts require jury trials ⓘ |
| legalCase | Duncan v. Louisiana NERFINISHED ⓘ |
| legalIssue |
application of the Sixth Amendment to the states
ⓘ
incorporation of the Sixth Amendment via the Fourteenth Amendment ⓘ right to trial by jury in criminal cases ⓘ |
| notableFor |
being the defendant in the case that led to Duncan v. Louisiana
ⓘ
his role in the incorporation of the right to jury trial against the states ⓘ |
| placeOfResidence |
Louisiana
NERFINISHED
ⓘ
Plaquemines Parish, Louisiana NERFINISHED ⓘ |
| raceAsLegalContext | African American teenager in the Jim Crow–era South ⓘ |
| relatedDoctrine | selective incorporation ⓘ |
| relatedField |
constitutional law
ⓘ
criminal procedure ⓘ |
| relatedRight |
due process of law
ⓘ
right to fair trial ⓘ |
| requested | trial by jury ⓘ |
| sentenceReceived |
$150 fine
ⓘ
60 days in prison ⓘ |
| stateInvolved | Louisiana NERFINISHED ⓘ |
| timePeriodOfCase | 1960s ⓘ |
| wasAccusedOf | simple battery ⓘ |
| wasConvictedIn | Louisiana state court NERFINISHED ⓘ |
| wasDenied | jury trial in Louisiana state court ⓘ |
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: Gary Duncan Description of subject: Gary Duncan was the African American teenager whose criminal case led to the landmark U.S. Supreme Court decision in Duncan v. Louisiana, which incorporated the right to a jury trial against the states.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.