Thomas "Tad" Lincoln
E19283
Thomas "Tad" Lincoln was the youngest and famously mischievous son of U.S. President Abraham Lincoln, remembered for his close, affectionate relationship with his father during the Civil War years.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Thomas "Tad" Lincoln canonical | 12 |
| Tad Lincoln | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T13387 — 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: Thomas "Tad" Lincoln Context triple: [Abraham Lincoln, child, Thomas "Tad" Lincoln]
-
A.
William Wallace Lincoln
William Wallace "Willie" Lincoln was the third son of U.S. President Abraham Lincoln, remembered for his intelligence, charm, and his early death in the White House at age 11.
-
B.
Robert Todd Lincoln
Robert Todd Lincoln was the eldest son of U.S. President Abraham Lincoln, who became a prominent lawyer, businessman, and statesman, serving as Secretary of War and U.S. Minister to the United Kingdom.
-
C.
Edward Baker Lincoln
Edward Baker Lincoln was the second son of U.S. President Abraham Lincoln, remembered for his early death in childhood before his father’s presidency.
-
D.
Mary Todd Lincoln
Mary Todd Lincoln was the First Lady of the United States during Abraham Lincoln’s presidency, known for her political influence, personal tragedies, and controversial public image during and after the Civil War.
-
E.
Isaac Roosevelt
Isaac Roosevelt was an American merchant, banker, and politician from New York, best known as an early member of the Roosevelt family and an ancestor of President Franklin D. Roosevelt.
- 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: Thomas "Tad" Lincoln Target entity description: Thomas "Tad" Lincoln was the youngest and famously mischievous son of U.S. President Abraham Lincoln, remembered for his close, affectionate relationship with his father during the Civil War years.
-
A.
William Wallace Lincoln
William Wallace "Willie" Lincoln was the third son of U.S. President Abraham Lincoln, remembered for his intelligence, charm, and his early death in the White House at age 11.
-
B.
Robert Todd Lincoln
Robert Todd Lincoln was the eldest son of U.S. President Abraham Lincoln, who became a prominent lawyer, businessman, and statesman, serving as Secretary of War and U.S. Minister to the United Kingdom.
-
C.
Edward Baker Lincoln
Edward Baker Lincoln was the second son of U.S. President Abraham Lincoln, remembered for his early death in childhood before his father’s presidency.
-
D.
Mary Todd Lincoln
Mary Todd Lincoln was the First Lady of the United States during Abraham Lincoln’s presidency, known for her political influence, personal tragedies, and controversial public image during and after the Civil War.
-
E.
Isaac Roosevelt
Isaac Roosevelt was an American merchant, banker, and politician from New York, best known as an early member of the Roosevelt family and an ancestor of President Franklin D. Roosevelt.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historical figure
ⓘ
human ⓘ |
| ageAtDeath | 18 ⓘ |
| associatedWith | Presidency of Abraham Lincoln ⓘ |
| associatedWithEvent | assassination of Abraham Lincoln ⓘ |
| associatedWithPlace |
Ford's Theatre (indirectly, via his father's assassination)
ⓘ
linked to:
Ford's Theatre
White House ⓘ |
| birthDate | 1853-04-04 ⓘ |
| burialPlace |
Lincoln Tomb, Oak Ridge Cemetery, Springfield, Illinois
ⓘ
linked to:
Lincoln Tomb
|
| causeOfDeath | likely tuberculosis ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| deathDate | 1871-07-15 ⓘ |
| describedBySource | contemporary accounts of the Lincoln White House ⓘ |
| education | tutored privately in the White House ⓘ |
| era | 19th century ⓘ |
| ethnicity | American of English descent ⓘ |
| familyName | Lincoln ⓘ |
| father | Abraham Lincoln ⓘ |
| gender | male ⓘ |
| givenName | Thomas ⓘ |
| hasOccupation | student ⓘ |
| influenced | Abraham Lincoln's emotional life during the Civil War ⓘ |
| knownFor |
accompanying Abraham Lincoln to military hospitals
ⓘ
playful interactions with soldiers and visitors at the White House ⓘ |
| languageSpoken | English ⓘ |
| livedDuring | American Civil War ⓘ |
| mother | Mary Todd Lincoln ⓘ |
| nickname | Tad ⓘ |
| notableCharacteristic |
high energy and impulsive behavior
ⓘ
speech impediment as a child ⓘ |
| notableFor |
being the youngest son of Abraham Lincoln
ⓘ
close and affectionate relationship with Abraham Lincoln ⓘ mischievous behavior as a child in the White House ⓘ |
| partOf | Lincoln family ⓘ |
| placeOfBirth | Springfield, Illinois ⓘ |
| placeOfDeath |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
|
| portrayedIn |
films and television works about Abraham Lincoln and his family
ⓘ
numerous biographies of Abraham Lincoln ⓘ |
| positionHeld | son of the President of the United States ⓘ |
| religion | Protestant background ⓘ |
| residence |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
Springfield, Illinois ⓘ Washington, D.C. ⓘ White House ⓘ |
| sibling |
Edward Baker Lincoln
ⓘ
Robert Todd Lincoln ⓘ William Wallace "Willie" Lincoln ⓘ
linked to:
William Wallace Lincoln
|
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: Thomas "Tad" Lincoln Description of subject: Thomas "Tad" Lincoln was the youngest and famously mischievous son of U.S. President Abraham Lincoln, remembered for his close, affectionate relationship with his father during the Civil War years.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Thomas "Tad" Lincoln
subject linked to:
Nancy Hanks Lincoln (paternal grandmother)
linked to: Thomas "Tad" Lincoln
subject linked to:
Nancy Hanks Lincoln (paternal grandmother)
linked to: Thomas "Tad" Lincoln
subject linked to:
Nancy Hanks Lincoln (paternal grandmother)
linked to: Thomas "Tad" Lincoln
linked to: Thomas "Tad" Lincoln