Heintzelman’s Division
E939261
Heintzelman’s Division was a Union Army infantry division that took part in the First Battle of Bull Run during the American Civil War.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Division of Brigadier General Samuel P. Heintzelman | 1 |
| Heintzelman’s Division canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11664213 — 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: Heintzelman’s Division Context triple: [Union Army positions in First Battle of Bull Run, includedUnit, Heintzelman’s Division]
-
A.
R. H. Anderson’s Division
R. H. Anderson’s Division was a Confederate infantry formation in the Army of Northern Virginia that played a significant role in major Eastern Theater battles of the American Civil War.
-
B.
Birney's Division
Birney's Division was a Union Army infantry division in the American Civil War, notably engaged in fierce fighting at Gettysburg and other major Eastern Theater battles.
-
C.
Early's Division
Early's Division was a Confederate infantry division in the American Civil War, commanded by General Jubal A. Early and noted for its role in major Eastern Theater campaigns.
-
D.
Hood's Division
Hood's Division was a Confederate infantry division in the American Civil War, commanded by Major General John Bell Hood and noted for its fierce fighting in battles such as Gettysburg.
-
E.
Pettigrew’s Division
Pettigrew’s Division was a Confederate infantry division in the American Civil War, best known for its pivotal role in the climactic assault at Gettysburg often referred to as Pickett’s Charge.
- 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: Heintzelman’s Division Target entity description: Heintzelman’s Division was a Union Army infantry division that took part in the First Battle of Bull Run during the American Civil War.
-
A.
R. H. Anderson’s Division
R. H. Anderson’s Division was a Confederate infantry formation in the Army of Northern Virginia that played a significant role in major Eastern Theater battles of the American Civil War.
-
B.
Birney's Division
Birney's Division was a Union Army infantry division in the American Civil War, notably engaged in fierce fighting at Gettysburg and other major Eastern Theater battles.
-
C.
Early's Division
Early's Division was a Confederate infantry division in the American Civil War, commanded by General Jubal A. Early and noted for its role in major Eastern Theater campaigns.
-
D.
Hood's Division
Hood's Division was a Confederate infantry division in the American Civil War, commanded by Major General John Bell Hood and noted for its fierce fighting in battles such as Gettysburg.
-
E.
Pettigrew’s Division
Pettigrew’s Division was a Confederate infantry division in the American Civil War, best known for its pivotal role in the climactic assault at Gettysburg often referred to as Pickett’s Charge.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army unit
ⓘ
infantry division ⓘ |
| allegiance | Union ⓘ |
| battleHonors | First Battle of Bull Run ⓘ |
| branch | Union Army ⓘ |
| commander | Samuel P. Heintzelman ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| engagement |
First Manassas
ⓘ
linked to:
Bull Run
|
| militaryFormationOf |
Union Army in the American Civil War
ⓘ
linked to:
Union Army
|
| namedAfter | Samuel P. Heintzelman ⓘ |
| notableCommander | Samuel P. Heintzelman ⓘ |
| opposedForce | Confederate States Army ⓘ |
| participatedIn | First Battle of Bull Run ⓘ |
| partOf | Army of Northeastern Virginia ⓘ |
| role | field division ⓘ |
| serviceDuring | American Civil War ⓘ |
| sideInBattle | Union ⓘ |
| theater | Eastern Theater of the American Civil War ⓘ |
| type | infantry ⓘ |
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: Heintzelman’s Division Description of subject: Heintzelman’s Division was a Union Army infantry division that took part in the First Battle of Bull Run during the American Civil War.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Heintzelman’s Division