Homer Plessy
E28992
Homer Plessy was a mixed-race Louisiana shoemaker and civil rights activist best known for challenging racial segregation laws in the landmark 1896 U.S. Supreme Court case Plessy v. Ferguson.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Homer Plessy canonical | 5 |
| Plessy | 2 |
| Du Plessy | 1 |
| Homer Adolph Plessy | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T181529 — 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: Homer Plessy Context triple: [Plessy v. Ferguson, plaintiff, Homer Plessy]
-
A.
Oliver Brown
Oliver Brown was the lead plaintiff in the landmark U.S. Supreme Court case that ended legal racial segregation in public schools.
-
B.
Blanche K. Bruce
Blanche K. Bruce was a prominent African American politician from Mississippi who became the first Black person to serve a full term in the U.S. Senate during the Reconstruction era.
-
C.
Medgar Evers
Medgar Evers was a prominent African American civil rights leader and NAACP field secretary in Mississippi whose assassination in 1963 made him a martyr of the struggle against racial segregation and injustice.
-
D.
Hosea Williams
Hosea Williams was an American civil rights leader, close associate of Martin Luther King Jr., and prominent organizer of nonviolent protests during the Civil Rights Movement.
-
E.
Henry T. Rainey
Henry T. Rainey was an American Democratic politician who served as Speaker of the U.S. House of Representatives during the early New Deal era under President Franklin D. Roosevelt.
- 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: Homer Plessy Target entity description: Homer Plessy was a mixed-race Louisiana shoemaker and civil rights activist best known for challenging racial segregation laws in the landmark 1896 U.S. Supreme Court case Plessy v. Ferguson.
-
A.
Oliver Brown
Oliver Brown was the lead plaintiff in the landmark U.S. Supreme Court case that ended legal racial segregation in public schools.
-
B.
Blanche K. Bruce
Blanche K. Bruce was a prominent African American politician from Mississippi who became the first Black person to serve a full term in the U.S. Senate during the Reconstruction era.
-
C.
Medgar Evers
Medgar Evers was a prominent African American civil rights leader and NAACP field secretary in Mississippi whose assassination in 1963 made him a martyr of the struggle against racial segregation and injustice.
-
D.
Hosea Williams
Hosea Williams was an American civil rights leader, close associate of Martin Luther King Jr., and prominent organizer of nonviolent protests during the Civil Rights Movement.
-
E.
Henry T. Rainey
Henry T. Rainey was an American Democratic politician who served as Speaker of the U.S. House of Representatives during the early New Deal era under President Franklin D. Roosevelt.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
civil rights activist
ⓘ
human ⓘ shoemaker ⓘ |
| associatedWith | Comité des Citoyens ⓘ |
| causeOfFame |
Plessy v. Ferguson (1896)
ⓘ
surface form:
U.S. Supreme Court decision establishing “separate but equal” doctrine
|
| chargedWith | violating Louisiana Separate Car Act ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfBirth | 1862-03-17 ⓘ |
| dateOfDeath | 1925-03-01 ⓘ |
| dateOfEvent | 1892-06-07 ⓘ |
| ethnicGroup |
Creole of color
ⓘ
mixed-race ⓘ |
| familyName |
Homer Plessy
self-linksurface differs
ⓘ
surface form:
Plessy
|
| fullName |
Homer Plessy
self-linksurface differs
ⓘ
surface form:
Homer Adolph Plessy
|
| givenName | Homer ⓘ |
| hasRole | test plaintiff selected by civil rights group Comité des Citoyens ⓘ |
| legacy |
case later overturned in principle by Brown v. Board of Education
ⓘ
central figure in constitutional law on racial segregation ⓘ |
| legalOutcome | conviction upheld by U.S. Supreme Court in 1896 ⓘ |
| legalStatus | plaintiff in Plessy v. Ferguson ⓘ |
| movement |
Jim Crow laws
ⓘ
surface form:
civil rights movement (early Jim Crow era)
|
| notableFor |
being plaintiff in Plessy v. Ferguson
ⓘ
challenging racial segregation in public transportation ⓘ |
| occupation |
civil rights activist
ⓘ
shoemaker ⓘ |
| pardon | posthumous pardon granted by State of Louisiana in 2022 ⓘ |
| participantIn |
Plessy v. Ferguson (1896)
ⓘ
surface form:
Plessy v. Ferguson
legal challenges to Jim Crow laws ⓘ |
| placeOfBirth |
New Orleans
ⓘ
surface form:
New Orleans, Louisiana
|
| placeOfBurial | St. Louis Cemetery No. 1, New Orleans ⓘ |
| placeOfDeath |
New Orleans
ⓘ
surface form:
New Orleans, Louisiana
|
| religion | Roman Catholic ⓘ |
| residence |
New Orleans
ⓘ
surface form:
New Orleans, Louisiana
|
| sexOrGender | male ⓘ |
| significantEvent |
arrest for sitting in a whites-only railroad car
ⓘ
test case organized to challenge segregation laws ⓘ |
| spouse | Louise Bordenave ⓘ |
| workLocation |
New Orleans
ⓘ
surface form:
New Orleans, Louisiana
|
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: Homer Plessy Description of subject: Homer Plessy was a mixed-race Louisiana shoemaker and civil rights activist best known for challenging racial segregation laws in the landmark 1896 U.S. Supreme Court case Plessy v. Ferguson.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Plessy v. Ferguson
this entity surface form:
Homer Adolph Plessy
this entity surface form:
Plessy
this entity surface form:
Du Plessy
subject surface form:
St. Louis Cemetery No. 1
this entity surface form:
Plessy