Theodore Judah
E446765
Theodore Judah was a 19th-century American civil engineer best known as the chief visionary and promoter behind the route and construction of the First Transcontinental Railroad.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Theodore D. Judah | 1 |
| Theodore Dehone Judah | 1 |
| Theodore Judah canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4490594 — 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: Theodore Judah Context triple: [Plumas County, namedBy, Theodore Judah]
-
A.
Andrew Smith Hallidie
Andrew Smith Hallidie was a 19th-century engineer and inventor credited with pioneering San Francisco’s cable car system and advancing wire rope technology.
-
B.
Joseph Wharton
Joseph Wharton was a 19th-century American industrialist and philanthropist whose fortune in mining and manufacturing helped shape modern business education.
-
C.
William Le Baron Jenney
William Le Baron Jenney was an American architect and engineer widely regarded as the "father of the skyscraper" for pioneering steel-frame construction in high-rise buildings.
-
D.
William Smith Jewett
William Smith Jewett was a 19th-century American painter known for his portraits and genre scenes.
-
E.
John Sutter
John Sutter was a Swiss-born pioneer and landowner in Mexican and early American California, best known for establishing the agricultural empire around which Sacramento developed and for his connection to the California Gold Rush.
- 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: Theodore Judah Target entity description: Theodore Judah was a 19th-century American civil engineer best known as the chief visionary and promoter behind the route and construction of the First Transcontinental Railroad.
-
A.
Andrew Smith Hallidie
Andrew Smith Hallidie was a 19th-century engineer and inventor credited with pioneering San Francisco’s cable car system and advancing wire rope technology.
-
B.
Joseph Wharton
Joseph Wharton was a 19th-century American industrialist and philanthropist whose fortune in mining and manufacturing helped shape modern business education.
-
C.
William Le Baron Jenney
William Le Baron Jenney was an American architect and engineer widely regarded as the "father of the skyscraper" for pioneering steel-frame construction in high-rise buildings.
-
D.
William Smith Jewett
William Smith Jewett was a 19th-century American painter known for his portraits and genre scenes.
-
E.
John Sutter
John Sutter was a Swiss-born pioneer and landowner in Mexican and early American California, best known for establishing the agricultural empire around which Sacramento developed and for his connection to the California Gold Rush.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
American
ⓘ
civil engineer ⓘ human ⓘ |
| advocatedFor | federal support for a transcontinental railroad ⓘ |
| birthDate | 1826-03-04 ⓘ |
| birthPlace | Bridgeport, Connecticut, United States ⓘ |
| causeOfDeath | yellow fever ⓘ |
| commemoratedBy |
Judah Street in San Francisco, California
ⓘ
linked to:
Judah Street
Theodore Judah Elementary School in Sacramento, California ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| deathDate | 1863-11-02 ⓘ |
| deathPlace | New York City, New York, United States ⓘ |
| designed | route of the Central Pacific Railroad over the Sierra Nevada ⓘ |
| educatedAt | Rensselaer Polytechnic Institute ⓘ |
| employer | Central Pacific Railroad ⓘ |
| era | 19th century ⓘ |
| familyName |
Judah
ⓘ
linked to:
Yehuda
|
| fieldOfWork |
civil engineering
ⓘ
railroad engineering ⓘ |
| fullName |
Theodore Dehone Judah
ⓘ
linked to:
Theodore Judah
|
| givenName | Theodore ⓘ |
| hasMonument | Judah Monument in Sacramento, California ⓘ |
| helpedFound |
Central Pacific Railroad Company of California
ⓘ
linked to:
Central Pacific Railroad
|
| influenced | development of railroads in California ⓘ |
| knownAs |
Crazy Judah
ⓘ
Theodore D. Judah ⓘ
linked to:
Theodore Judah
|
| metWith |
Charles Crocker
ⓘ
Collis P. Huntington ⓘ Leland Stanford ⓘ Mark Hopkins Jr. ⓘ
linked to:
Mark Hopkins
|
| notableFor |
promotion of the First Transcontinental Railroad
ⓘ
surveying a route across the Sierra Nevada for the transcontinental railroad ⓘ |
| occupation |
civil engineer
ⓘ
railroad engineer ⓘ |
| placeOfBurial | Green-Wood Cemetery, Brooklyn, New York, United States ⓘ |
| playedKeyRoleIn | First Transcontinental Railroad ⓘ |
| positionHeld |
chief engineer of the Central Pacific Railroad
ⓘ
chief engineer of the Sacramento Valley Railroad ⓘ |
| religion | Episcopalian ⓘ |
| residence |
Sacramento, California, United States
ⓘ
linked to:
Sacramento
|
| spouse | Anna Pierce Judah ⓘ |
| traveledTo | Panama ⓘ |
| workedOn |
Niagara Gorge Railroad surveys
ⓘ
Sacramento Valley Railroad ⓘ |
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: Theodore Judah Description of subject: Theodore Judah was a 19th-century American civil engineer best known as the chief visionary and promoter behind the route and construction of the First Transcontinental Railroad.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Theodore Judah
linked to: Theodore Judah