Irving Saypol
E1036510
Irving Saypol was a prominent American federal prosecutor best known for leading the espionage case against Julius and Ethel Rosenberg during the early Cold War era.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irving Saypol canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13392822 — 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: Irving Saypol Context triple: [Julius Rosenberg and Ethel Rosenberg, prosecutor, Irving Saypol]
-
A.
Millard Lampell
Millard Lampell was an American writer and folk singer best known for his socially conscious work in radio, film, and music, and for being blacklisted during the McCarthy era.
-
B.
Herman Lieberman
Herman Lieberman was a prominent Polish socialist politician, lawyer, and parliamentarian active in the early 20th century, known for his leadership in the Polish left and opposition to authoritarianism.
-
C.
Abraham Paskowitz
Abraham Paskowitz is a filmmaker and entrepreneur best known for creating the mobile video-sharing app Socialcam.
-
D.
Zalman Ehrlich
Zalman Ehrlich is a person notable enough to be recognized as a significant bearer of the surname Ehrlich.
-
E.
Irving Elinson
Irving Elinson was an American screenwriter best known for his work on mid-20th-century Hollywood films, including classic musical comedies.
- 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: Irving Saypol Target entity description: Irving Saypol was a prominent American federal prosecutor best known for leading the espionage case against Julius and Ethel Rosenberg during the early Cold War era.
-
A.
Millard Lampell
Millard Lampell was an American writer and folk singer best known for his socially conscious work in radio, film, and music, and for being blacklisted during the McCarthy era.
-
B.
Herman Lieberman
Herman Lieberman was a prominent Polish socialist politician, lawyer, and parliamentarian active in the early 20th century, known for his leadership in the Polish left and opposition to authoritarianism.
-
C.
Abraham Paskowitz
Abraham Paskowitz is a filmmaker and entrepreneur best known for creating the mobile video-sharing app Socialcam.
-
D.
Zalman Ehrlich
Zalman Ehrlich is a person notable enough to be recognized as a significant bearer of the surname Ehrlich.
-
E.
Irving Elinson
Irving Elinson was an American screenwriter best known for his work on mid-20th-century Hollywood films, including classic musical comedies.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
judge ⓘ lawyer ⓘ prosecutor ⓘ |
| activeYearsEnd | 1970s ⓘ |
| activeYearsStart | 1930s ⓘ |
| appointedBy | Harry S. Truman NERFINISHED ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfBirth | 1905-09-03 ⓘ |
| dateOfDeath | 1977-06-30 ⓘ |
| educatedAt |
Brooklyn Law School
NERFINISHED
ⓘ
City College of New York NERFINISHED ⓘ |
| employer |
United States Attorney's Office for the Southern District of New York
NERFINISHED
ⓘ
United States Department of Justice ⓘ |
| ethnicGroup | Jewish Americans NERFINISHED ⓘ |
| familyName | Saypol NERFINISHED ⓘ |
| fieldOfWork |
criminal law
ⓘ
espionage prosecutions ⓘ |
| genre | criminal prosecution ⓘ |
| givenName | Irving NERFINISHED ⓘ |
| languageSpoken | English ⓘ |
| memberOf | Democratic Party NERFINISHED ⓘ |
| name | Irving Howard Saypol NERFINISHED ⓘ |
| notableCase | United States v. Julius Rosenberg et al. NERFINISHED ⓘ |
| notableFor |
Cold War espionage cases
ⓘ
leading federal prosecution in the Rosenberg espionage trial ⓘ |
| notableWork |
Rosenberg espionage case
NERFINISHED
ⓘ
prosecution of Ethel Rosenberg ⓘ prosecution of Julius Rosenberg ⓘ |
| occupation |
federal prosecutor
ⓘ
judge ⓘ lawyer ⓘ |
| placeOfBirth |
New York
NERFINISHED
ⓘ
New York City ⓘ United States of America ⓘ |
| placeOfDeath |
New York
NERFINISHED
ⓘ
New York City ⓘ United States of America ⓘ |
| positionHeld |
Justice of the New York Supreme Court
ⓘ
United States Attorney for the Southern District of New York NERFINISHED ⓘ |
| residence | New York City ⓘ |
| spouse | Estelle Saypol NERFINISHED ⓘ |
| workLocation |
New York City
ⓘ
Southern District of New York NERFINISHED ⓘ |
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: Irving Saypol Description of subject: Irving Saypol was a prominent American federal prosecutor best known for leading the espionage case against Julius and Ethel Rosenberg during the early Cold War era.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Julius Rosenberg and Ethel Rosenberg