Lona Cohen
E673462
Lona Cohen was an American-born Soviet spy who, along with her husband Morris Cohen, played a key role in passing atomic and military secrets from the West to the USSR during the Cold War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lona Cohen canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7433253 — 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: Lona Cohen Context triple: [Soviet atomic bomb project (indirectly, via espionage), notableSpy, Lona Cohen]
-
A.
Leonore Cohn
Leonore Cohn, later known as Leonore Annenberg, was an American philanthropist and arts patron who served as Chief of Protocol of the United States under President Ronald Reagan.
-
B.
Fannie Cohn
Fannie Cohn was a prominent labor organizer and leader in the American garment industry, known for her influential role in advancing workers’ rights through the International Ladies' Garment Workers' Union.
-
C.
Margaret Shenberg
Margaret Shenberg was the first wife of influential Hollywood film producer and studio executive Louis B. Mayer.
-
D.
Helene Shapiro
Helene Shapiro is an American mathematician known for her work in linear algebra and matrix theory, and as a student of Olga Taussky-Todd.
-
E.
Ruth Arnon
Ruth Arnon is an Israeli biochemist best known as a co-developer of the multiple sclerosis drug Copaxone and a prominent figure in immunology research.
- 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: Lona Cohen Target entity description: Lona Cohen was an American-born Soviet spy who, along with her husband Morris Cohen, played a key role in passing atomic and military secrets from the West to the USSR during the Cold War.
-
A.
Leonore Cohn
Leonore Cohn, later known as Leonore Annenberg, was an American philanthropist and arts patron who served as Chief of Protocol of the United States under President Ronald Reagan.
-
B.
Fannie Cohn
Fannie Cohn was a prominent labor organizer and leader in the American garment industry, known for her influential role in advancing workers’ rights through the International Ladies' Garment Workers' Union.
-
C.
Margaret Shenberg
Margaret Shenberg was the first wife of influential Hollywood film producer and studio executive Louis B. Mayer.
-
D.
Helene Shapiro
Helene Shapiro is an American mathematician known for her work in linear algebra and matrix theory, and as a student of Olga Taussky-Todd.
-
E.
Ruth Arnon
Ruth Arnon is an Israeli biochemist best known as a co-developer of the multiple sclerosis drug Copaxone and a prominent figure in immunology research.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
American emigrant to the Soviet Union
ⓘ
Soviet spy ⓘ human ⓘ intelligence agent ⓘ |
| awardReceived |
Order of Friendship of Peoples
NERFINISHED
ⓘ
Order of the Red Banner ⓘ |
| birthName | Leontine Theresa Petka NERFINISHED ⓘ |
| convictedOf | espionage ⓘ |
| countryOfCitizenship |
Soviet Union
ⓘ
United States of America ⓘ |
| countryOfConviction | United Kingdom NERFINISHED ⓘ |
| dateOfBirth | 1913-01-11 ⓘ |
| dateOfDeath | 1992-12-23 ⓘ |
| employer |
KGB
NERFINISHED
ⓘ
NKVD NERFINISHED ⓘ Soviet intelligence NERFINISHED ⓘ |
| ethnicGroup | Polish American ⓘ |
| fieldOfWork |
clandestine operations
ⓘ
intelligence ⓘ |
| ideology | communism ⓘ |
| languageSpoken |
English
ⓘ
Russian ⓘ |
| memberOf | Communist Party USA NERFINISHED ⓘ |
| name | Lona Cohen NERFINISHED ⓘ |
| notableEvent |
arrest in the United Kingdom in 1961
ⓘ
conviction for espionage in the United Kingdom ⓘ prisoner exchange and return to the Soviet Union ⓘ |
| notableFor |
operating under deep cover in the United Kingdom
ⓘ
serving as courier for Soviet spy networks in the United States ⓘ transporting atomic bomb secrets from Los Alamos ⓘ |
| notableWork |
espionage against the United States and United Kingdom
ⓘ
passing atomic secrets from the West to the USSR ⓘ |
| occupation |
intelligence officer
ⓘ
spy ⓘ |
| participantIn |
Cold War
NERFINISHED
ⓘ
Soviet atomic espionage ⓘ |
| placeOfBirth | Adams, Massachusetts, United States of America NERFINISHED ⓘ |
| placeOfDeath | Moscow, Russia NERFINISHED ⓘ |
| residence |
London, England
ⓘ
surface form:
London
Moscow ⓘ New York City ⓘ |
| sexOrGender | female ⓘ |
| spouse | Morris Cohen NERFINISHED ⓘ |
| usedAlias |
Helen
NERFINISHED
ⓘ
Helen Kroger NERFINISHED ⓘ Helen Kruger NERFINISHED ⓘ |
| workedFor |
GRU
NERFINISHED
ⓘ
Soviet military intelligence 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: Lona Cohen Description of subject: Lona Cohen was an American-born Soviet spy who, along with her husband Morris Cohen, played a key role in passing atomic and military secrets from the West to the USSR during the Cold War.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.