Milburn G. Apt
E244578
Milburn G. Apt was a United States Air Force test pilot and the first person to exceed Mach 3, who died in the crash of the Bell X-2 during a record-setting flight in 1956.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Milburn G. Apt canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T832504 — 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: Milburn G. Apt Context triple: [Bell X-2, testPilot, Milburn G. Apt]
-
A.
Philip M. Kaiser
Philip M. Kaiser was an American diplomat and public servant who held several key ambassadorial posts during the Cold War era.
-
B.
Richard H. Kline
Richard H. Kline was an American cinematographer known for his work on major Hollywood films from the 1960s through the 1980s, including visually ambitious projects like the 1976 remake of King Kong.
-
C.
Donald B. Parkinson
Donald B. Parkinson was an American architect known for designing prominent early 20th-century landmarks in Los Angeles, often in collaboration with his father John Parkinson.
-
D.
Robert A. Miller
Robert A. Miller is the son of renowned American playwright Arthur Miller and has worked as a film and theater director and producer.
-
E.
Leonard M. Isitt
Leonard M. Isitt was a senior Royal New Zealand Air Force officer who represented New Zealand at the formal Japanese surrender ceremony ending World War II.
- 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: Milburn G. Apt Target entity description: Milburn G. Apt was a United States Air Force test pilot and the first person to exceed Mach 3, who died in the crash of the Bell X-2 during a record-setting flight in 1956.
-
A.
Philip M. Kaiser
Philip M. Kaiser was an American diplomat and public servant who held several key ambassadorial posts during the Cold War era.
-
B.
Richard H. Kline
Richard H. Kline was an American cinematographer known for his work on major Hollywood films from the 1960s through the 1980s, including visually ambitious projects like the 1976 remake of King Kong.
-
C.
Donald B. Parkinson
Donald B. Parkinson was an American architect known for designing prominent early 20th-century landmarks in Los Angeles, often in collaboration with his father John Parkinson.
-
D.
Robert A. Miller
Robert A. Miller is the son of renowned American playwright Arthur Miller and has worked as a film and theater director and producer.
-
E.
Leonard M. Isitt
Leonard M. Isitt was a senior Royal New Zealand Air Force officer who represented New Zealand at the formal Japanese surrender ceremony ending World War II.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
United States Air Force officer
ⓘ
human ⓘ test pilot ⓘ |
| aircraftFlown |
Bell X-2
ⓘ
North American F-100 Super Sabre ⓘ
surface form:
F-100 Super Sabre
North American F-86 Sabre ⓘ
surface form:
F-86 Sabre
|
| allegiance | United States of America ⓘ |
| awardReceived |
Air Medal
ⓘ
Distinguished Flying Cross ⓘ |
| burialPlace | Buffalo Cemetery, Buffalo, Kansas, United States ⓘ |
| causeOfDeath | aircraft crash ⓘ |
| conflict |
Korean War
ⓘ
World War II ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| crashInvolved |
Bell X-2
ⓘ
surface form:
Bell X-2 number 46-674
|
| dateOfBirth | 1924-04-09 ⓘ |
| dateOfDeath | 1956-09-27 ⓘ |
| deathDuring | record-setting Bell X-2 flight ⓘ |
| education |
United States Military Academy
ⓘ
surface form:
United States Military Academy at West Point
|
| employer | United States Air Force ⓘ |
| familyName | Apt ⓘ |
| fieldOfWork | experimental flight testing ⓘ |
| givenName | Milburn ⓘ |
| hasHonorificPrefix | Captain ⓘ |
| mannerOfDeath | accident ⓘ |
| maximumSpeedAchieved | Mach 3.2 ⓘ |
| militaryBranch | United States Air Force ⓘ |
| militaryRank | captain ⓘ |
| nativeLanguage | English ⓘ |
| notableEvent | loss of control and crash following high-speed flight in Bell X-2 ⓘ |
| notableFor | being the first person to exceed Mach 3 ⓘ |
| notableWork |
Bell X-2
ⓘ
surface form:
Bell X-2 test flights
|
| occupation |
military officer
ⓘ
test pilot ⓘ |
| partOf | early high-speed rocket aircraft research in the United States ⓘ |
| placeOfBirth | Buffalo, Kansas, United States ⓘ |
| placeOfDeath | near Edwards Air Force Base, California, United States ⓘ |
| recordSet | first human flight exceeding Mach 3 ⓘ |
| residence |
Edwards Air Force Base
ⓘ
surface form:
Edwards Air Force Base area, California, United States
|
| serviceEnd | 1956-09-27 ⓘ |
| serviceNumber | United States Air Force officer service number (specific value not provided) ⓘ |
| serviceStart | during World War II era ⓘ |
| sexOrGender | male ⓘ |
| testFlightDate | 1956-09-27 ⓘ |
| testProgram |
Bell X-2
ⓘ
surface form:
Bell X-2 research program
|
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: Milburn G. Apt Description of subject: Milburn G. Apt was a United States Air Force test pilot and the first person to exceed Mach 3, who died in the crash of the Bell X-2 during a record-setting flight in 1956.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.