1st Division, II Corps
E626665
The 1st Division of the Union Army’s II Corps was a key infantry formation in the Army of the Potomac during the American Civil War, noted for its heavy engagement in major Eastern Theater battles under commanders such as Francis Channing Barlow.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1st Division, II Corps canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6866336 — 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: 1st Division, II Corps Context triple: [Francis Channing Barlow, commandedUnit, 1st Division, II Corps]
-
A.
1st Division, XII Corps
The 1st Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
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B.
2nd Division, XII Corps
The 2nd Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
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C.
1st Division, XI Corps
The 1st Division of the XI Corps was a Union Army infantry formation in the American Civil War that saw action in major Eastern Theater campaigns, including the battles of Chancellorsville and Gettysburg.
-
D.
2nd Division, XI Corps
The 2nd Division, XI Corps was a Union Army infantry division in the American Civil War, noted for its service in major Eastern Theater campaigns under the Army of the Potomac.
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E.
1st Division, V Corps
The 1st Division, V Corps was a Union Army infantry division in the American Civil War, noted for including distinguished regiments such as the 20th Maine and for its prominent role in major Eastern Theater battles.
- 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: 1st Division, II Corps Target entity description: The 1st Division of the Union Army’s II Corps was a key infantry formation in the Army of the Potomac during the American Civil War, noted for its heavy engagement in major Eastern Theater battles under commanders such as Francis Channing Barlow.
-
A.
1st Division, XII Corps
The 1st Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
-
B.
2nd Division, XII Corps
The 2nd Division of the XII Corps was a Union Army infantry formation in the American Civil War, noted for its crucial defensive stand on Culp's Hill during the Battle of Gettysburg.
-
C.
1st Division, XI Corps
The 1st Division of the XI Corps was a Union Army infantry formation in the American Civil War that saw action in major Eastern Theater campaigns, including the battles of Chancellorsville and Gettysburg.
-
D.
2nd Division, XI Corps
The 2nd Division, XI Corps was a Union Army infantry division in the American Civil War, noted for its service in major Eastern Theater campaigns under the Army of the Potomac.
-
E.
1st Division, V Corps
The 1st Division, V Corps was a Union Army infantry division in the American Civil War, noted for including distinguished regiments such as the 20th Maine and for its prominent role in major Eastern Theater battles.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army unit
ⓘ
infantry division ⓘ |
| allegiance | Union NERFINISHED ⓘ |
| associatedWith |
Francis Channing Barlow’s division at Gettysburg
ⓘ
II Corps assaults at Spotsylvania’s Bloody Angle ⓘ II Corps attacks at Cold Harbor ⓘ |
| branch | Union Army NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| country | United States of America ⓘ |
| engagement |
Appomattox Campaign
NERFINISHED
ⓘ
Battle of Antietam NERFINISHED ⓘ Battle of Chancellorsville NERFINISHED ⓘ Battle of Cold Harbor NERFINISHED ⓘ Battle of Fredericksburg NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Spotsylvania Court House NERFINISHED ⓘ Battle of the Wilderness NERFINISHED ⓘ Overland Campaign NERFINISHED ⓘ Siege of Petersburg NERFINISHED ⓘ |
| higherFormation | Army of the Potomac NERFINISHED ⓘ |
| notableCommander |
Alexander Hays
NERFINISHED
ⓘ
Francis Channing Barlow NERFINISHED ⓘ John C. Caldwell NERFINISHED ⓘ John C. Robinson NERFINISHED ⓘ William Hays NERFINISHED ⓘ |
| notedFor |
heavy combat losses in major battles
ⓘ
participation in key assaults and defensive actions in the Eastern Theater ⓘ |
| partOf |
Army of the Potomac
NERFINISHED
ⓘ
II Corps NERFINISHED ⓘ |
| role | infantry ⓘ |
| side | Union Army NERFINISHED ⓘ |
| theater | Eastern Theater of the American Civil War NERFINISHED ⓘ |
| timePeriod | 1862–1865 ⓘ |
| type | field division ⓘ |
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: 1st Division, II Corps Description of subject: The 1st Division of the Union Army’s II Corps was a key infantry formation in the Army of the Potomac during the American Civil War, noted for its heavy engagement in major Eastern Theater battles under commanders such as Francis Channing Barlow.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Francis Channing Barlow