John Maynard Harlan
E342013
John Maynard Harlan was an American lawyer and civic leader in Chicago, known for his work in municipal reform and as the son of U.S. Supreme Court Justice John Marshall Harlan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John Maynard Harlan canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2223956 — 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 Maynard Harlan Context triple: [John Marshall Harlan, child, John Maynard Harlan]
-
A.
John Marshall Harlan
John Marshall Harlan was a U.S. Supreme Court justice best known for his powerful lone dissents in civil rights cases, particularly his opposition to racial segregation in Plessy v. Ferguson.
-
B.
John M. Harlan II
John M. Harlan II was a prominent mid-20th-century U.S. Supreme Court Justice known for his influential opinions on civil rights, due process, and a restrained, precedent-focused approach to constitutional interpretation.
-
C.
Justice Owen J. Roberts
Justice Owen J. Roberts was an Associate Justice of the U.S. Supreme Court (1930–1945) known for his pivotal swing votes during the New Deal era.
-
D.
Oliver Wendell Holmes Jr.
Oliver Wendell Holmes Jr. was a long-serving U.S. Supreme Court Justice and influential legal thinker known for his contributions to American common law and free speech jurisprudence.
-
E.
Hugo L. Black
Hugo L. Black was a long-serving U.S. Supreme Court justice known for his strong advocacy of civil liberties and broad interpretation of the Constitution, particularly the First Amendment.
- 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 Maynard Harlan Target entity description: John Maynard Harlan was an American lawyer and civic leader in Chicago, known for his work in municipal reform and as the son of U.S. Supreme Court Justice John Marshall Harlan.
-
A.
John Marshall Harlan
John Marshall Harlan was a U.S. Supreme Court justice best known for his powerful lone dissents in civil rights cases, particularly his opposition to racial segregation in Plessy v. Ferguson.
-
B.
John M. Harlan II
John M. Harlan II was a prominent mid-20th-century U.S. Supreme Court Justice known for his influential opinions on civil rights, due process, and a restrained, precedent-focused approach to constitutional interpretation.
-
C.
Justice Owen J. Roberts
Justice Owen J. Roberts was an Associate Justice of the U.S. Supreme Court (1930–1945) known for his pivotal swing votes during the New Deal era.
-
D.
Oliver Wendell Holmes Jr.
Oliver Wendell Holmes Jr. was a long-serving U.S. Supreme Court Justice and influential legal thinker known for his contributions to American common law and free speech jurisprudence.
-
E.
Hugo L. Black
Hugo L. Black was a long-serving U.S. Supreme Court justice known for his strong advocacy of civil liberties and broad interpretation of the Constitution, particularly the First Amendment.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
civic leader
ⓘ
human ⓘ lawyer ⓘ politician ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| educatedAt |
Columbia Law School
ⓘ
Princeton University ⓘ |
| familyName | Harlan ⓘ |
| fieldOfWork | municipal reform ⓘ |
| givenName | John ⓘ |
| movement |
Progressivism
ⓘ
linked to:
Progressive Era
|
| name | John Maynard Harlan ⓘ |
| notableFor |
advocacy of municipal reform in Chicago
ⓘ
being the son of U.S. Supreme Court Justice John Marshall Harlan ⓘ |
| notableWork | municipal reform in Chicago ⓘ |
| occupation |
civic leader
ⓘ
lawyer ⓘ politician ⓘ |
| parent | John Marshall Harlan ⓘ |
| placeOfActivity |
Chicago
ⓘ
Illinois ⓘ United States of America ⓘ |
| politicalActivity | municipal ownership movement in Chicago ⓘ |
| positionHeld |
Chicago alderman
ⓘ
candidate for Mayor of Chicago ⓘ member of Chicago City Council ⓘ |
| relative | John Marshall Harlan ⓘ |
| residence |
Chicago
ⓘ
Illinois ⓘ |
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 Maynard Harlan Description of subject: John Maynard Harlan was an American lawyer and civic leader in Chicago, known for his work in municipal reform and as the son of U.S. Supreme Court Justice John Marshall Harlan.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.