Langdon Clemens
E11273
Langdon Clemens was the firstborn son of American author Mark Twain (Samuel Clemens), who died in infancy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Langdon Clemens canonical | 15 |
How this entity was disambiguated
This entity first appeared as the object of triple T29384 — 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: Langdon Clemens Context triple: [Mark Twain, child, Langdon Clemens]
-
A.
Charles Dudley Warner
Charles Dudley Warner was a 19th-century American essayist and novelist best known for co-authoring "The Gilded Age: A Tale of Today" with Mark Twain, which gave its name to the era of rapid economic growth and social inequality in post–Civil War America.
-
B.
Mark Twain
Mark Twain was a renowned 19th-century American author and humorist, best known for works like "The Adventures of Tom Sawyer" and "Adventures of Huckleberry Finn."
-
C.
William Dean Howells
William Dean Howells was a prominent 19th-century American realist author, critic, and editor often called the "Dean of American Letters."
-
D.
Nathaniel Hawthorne
Nathaniel Hawthorne was a 19th-century American novelist and short story writer best known for his dark romantic works exploring sin, guilt, and morality, including "The Scarlet Letter" and "The House of the Seven Gables."
-
E.
Olivia Langdon Clemens
Olivia Langdon Clemens was the educated, reform-minded wife of author Mark Twain, known for her strong moral influence on his work and her involvement in social causes.
- 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: Langdon Clemens Target entity description: Langdon Clemens was the firstborn son of American author Mark Twain (Samuel Clemens), who died in infancy.
-
A.
Charles Dudley Warner
Charles Dudley Warner was a 19th-century American essayist and novelist best known for co-authoring "The Gilded Age: A Tale of Today" with Mark Twain, which gave its name to the era of rapid economic growth and social inequality in post–Civil War America.
-
B.
Mark Twain
Mark Twain was a renowned 19th-century American author and humorist, best known for works like "The Adventures of Tom Sawyer" and "Adventures of Huckleberry Finn."
-
C.
William Dean Howells
William Dean Howells was a prominent 19th-century American realist author, critic, and editor often called the "Dean of American Letters."
-
D.
Nathaniel Hawthorne
Nathaniel Hawthorne was a 19th-century American novelist and short story writer best known for his dark romantic works exploring sin, guilt, and morality, including "The Scarlet Letter" and "The House of the Seven Gables."
-
E.
Olivia Langdon Clemens
Olivia Langdon Clemens was the educated, reform-minded wife of author Mark Twain, known for her strong moral influence on his work and her involvement in social causes.
- F. None of above. chosen
Statements (18)
| Predicate | Object |
|---|---|
| instanceOf | human ⓘ |
| ageAtDeath | infant ⓘ |
| causeOfDeath | diphtheria ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| familyName | Clemens ⓘ |
| father |
Mark Twain
ⓘ
Mark Twain ⓘ
surface form:
Samuel Langhorne Clemens
|
| givenName | Langdon ⓘ |
| mother | Olivia Langdon Clemens ⓘ |
| notableFor | being the firstborn son of Mark Twain ⓘ |
| notableRelative |
Mark Twain
ⓘ
Olivia Langdon Clemens ⓘ |
| placeOfBirth | United States of America ⓘ |
| positionInFamily | firstborn child ⓘ |
| sexOrGender | male ⓘ |
| sibling |
Clara Clemens
ⓘ
Jean Clemens ⓘ Susy Clemens ⓘ |
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: Langdon Clemens Description of subject: Langdon Clemens was the firstborn son of American author Mark Twain (Samuel Clemens), who died in infancy.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Olivia Susan Clemens