Leslie R. Groves Jr.
E13684
United States Army officer
human
lieutenant general
military engineer
person involved in the Manhattan Project
Leslie R. Groves Jr. was a U.S. Army Corps of Engineers lieutenant general who oversaw the construction of the Pentagon and directed the World War II effort to develop the first atomic bombs.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Leslie R. Groves Jr. canonical | 11 |
| Leslie R. Groves | 4 |
| Leslie Groves | 3 |
| General Leslie Groves | 2 |
| General Leslie R. Groves | 2 |
| Leslie Richard Groves Jr. | 2 |
| Leslie Richard Groves | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T17929 — 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: Leslie R. Groves Jr. Context triple: [Manhattan Project, director, Leslie R. Groves Jr.]
-
A.
Karl T. Compton
Karl T. Compton was an American physicist and influential science administrator who served as president of MIT and played a major role in organizing U.S. scientific efforts during World War II.
-
B.
George C. Marshall
George C. Marshall was an American military leader, statesman, and U.S. Secretary of State who played a key role in World War II strategy and postwar European recovery.
-
C.
Harold A. Wheeler
Harold A. Wheeler was an influential American electrical engineer and inventor known for his pioneering contributions to radio and radar technology.
-
D.
J. Robert Oppenheimer
J. Robert Oppenheimer was an American theoretical physicist best known as the scientific director of the Manhattan Project, which developed the first nuclear weapons during World War II.
-
E.
James V. Forrestal
James V. Forrestal was an American government official who served as the first U.S. Secretary of Defense and played a key role in organizing the post–World War II military establishment.
- 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: Leslie R. Groves Jr. Target entity description: Leslie R. Groves Jr. was a U.S. Army Corps of Engineers lieutenant general who oversaw the construction of the Pentagon and directed the World War II effort to develop the first atomic bombs.
-
A.
Karl T. Compton
Karl T. Compton was an American physicist and influential science administrator who served as president of MIT and played a major role in organizing U.S. scientific efforts during World War II.
-
B.
George C. Marshall
George C. Marshall was an American military leader, statesman, and U.S. Secretary of State who played a key role in World War II strategy and postwar European recovery.
-
C.
Harold A. Wheeler
Harold A. Wheeler was an influential American electrical engineer and inventor known for his pioneering contributions to radio and radar technology.
-
D.
J. Robert Oppenheimer
J. Robert Oppenheimer was an American theoretical physicist best known as the scientific director of the Manhattan Project, which developed the first nuclear weapons during World War II.
-
E.
James V. Forrestal
James V. Forrestal was an American government official who served as the first U.S. Secretary of Defense and played a key role in organizing the post–World War II military establishment.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
United States Army officer
ⓘ
human ⓘ lieutenant general ⓘ military engineer ⓘ person involved in the Manhattan Project ⓘ |
| awardReceived |
Bronze Star Medal
ⓘ
Army Distinguished Service Medal ⓘ
surface form:
Distinguished Service Medal (United States)
Legion of Merit ⓘ |
| burialPlace | Arlington National Cemetery ⓘ |
| causeOfDeath | heart attack ⓘ |
| conflict | World War II ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfBirth | 1896-08-17 ⓘ |
| dateOfDeath | 1970-07-13 ⓘ |
| educatedAt | United States Military Academy ⓘ |
| employer | United States Army ⓘ |
| familyName | Groves ⓘ |
| fieldOfWork |
military engineering
ⓘ
nuclear weapons development ⓘ |
| fullName |
Leslie R. Groves Jr.
self-linksurface differs
ⓘ
surface form:
Leslie Richard Groves Jr.
|
| genre | military history ⓘ |
| givenName | Leslie ⓘ |
| honorificSuffix | Jr. ⓘ |
| languageOfWorkOrName | English ⓘ |
| militaryBranch |
United States Army
ⓘ
U.S. Army Corps of Engineers ⓘ
surface form:
United States Army Corps of Engineers
|
| militaryRank | lieutenant general ⓘ |
| nativeLanguage | English ⓘ |
| notableEvent |
oversaw selection of Los Alamos site
ⓘ
supervised construction of Hanford Engineer Works ⓘ supervised construction of Oak Ridge facilities ⓘ |
| notableProject |
Manhattan Project
ⓘ
Pentagon construction project ⓘ |
| notableWork |
direction of the World War II U.S. atomic bomb development program
ⓘ
leadership of the Manhattan Engineer District ⓘ oversight of the construction of the Pentagon ⓘ |
| numberOfChildren | 2 ⓘ |
| occupation |
engineer
ⓘ
military officer ⓘ |
| parent | Leslie Richard Groves Sr. ⓘ |
| placeOfBirth |
Albany
ⓘ
surface form:
Albany, New York, United States
|
| placeOfDeath |
Washington, D.C.
ⓘ
surface form:
Washington, D.C., United States
|
| positionHeld |
deputy chief of construction, U.S. Army Corps of Engineers
ⓘ
director of the Manhattan Project ⓘ officer in charge of Pentagon construction ⓘ |
| religion | Methodism ⓘ |
| residence |
Washington, D.C.
ⓘ
surface form:
Washington, D.C., United States
|
| sexOrGender | male ⓘ |
| spouse | Grace Hulbert Wilson ⓘ |
| wrote | Now It Can Be Told: The Story of the Manhattan Project ⓘ |
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: Leslie R. Groves Jr. Description of subject: Leslie R. Groves Jr. was a U.S. Army Corps of Engineers lieutenant general who oversaw the construction of the Pentagon and directed the World War II effort to develop the first atomic bombs.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Manhattan Engineer District
Manhattan Engineer District of the U.S. Army Corps of Engineers
→
commander
→
Leslie R. Groves Jr.
ⓘ
subject surface form:
Manhattan Engineer District
Manhattan Engineer District of the U.S. Army Corps of Engineers
→
chiefEngineer
→
Leslie R. Groves Jr.
ⓘ
subject surface form:
Manhattan Engineer District
this entity surface form:
General Leslie Groves
this entity surface form:
Leslie Richard Groves Jr.
this entity surface form:
Leslie Groves
this entity surface form:
General Leslie R. Groves
this entity surface form:
General Leslie R. Groves
this entity surface form:
Leslie R. Groves
this entity surface form:
Leslie Richard Groves
this entity surface form:
Leslie R. Groves
subject surface form:
Leslie R. Groves Jr.
this entity surface form:
Leslie Richard Groves Jr.
this entity surface form:
General Leslie Groves
this entity surface form:
Leslie R. Groves
this entity surface form:
Leslie Groves
this entity surface form:
Leslie Groves
this entity surface form:
Leslie R. Groves