Commander, Department of the Mississippi
E325747
The Commander of the Department of the Mississippi was a senior Union Army command role during the American Civil War, overseeing major military operations across the Mississippi Valley and surrounding regions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Commander, Department of the Mississippi canonical | 1 |
| Commander, Department of the Missouri | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3077763 — 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: Commander, Department of the Mississippi Context triple: [Henry W. Halleck, positionHeld, Commander, Department of the Mississippi]
-
A.
Commander-in-Chief South
Commander-in-Chief South was the senior German military command responsible for directing Axis operations in the Mediterranean and southern European theaters during World War II.
-
B.
Adjutant General of Missouri
The Adjutant General of Missouri is the senior military official responsible for overseeing the Missouri National Guard and advising the state government on military affairs.
-
C.
Chief Signal Officer of the U.S. Army
The Chief Signal Officer of the U.S. Army is the senior officer responsible for overseeing the Army’s communications and signal operations, including the development and management of military communication systems and technologies.
-
D.
Army Commander of Southern Command
The Army Commander of Southern Command is the senior-most Indian Army officer responsible for overseeing all army operations, administration, and readiness in India’s Southern Command theatre.
-
E.
Commandant of the Coast Guard
The Commandant of the Coast Guard is the highest-ranking officer and service chief of the United States Coast Guard, responsible for its overall leadership, operations, and strategic direction.
- 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: Commander, Department of the Mississippi Target entity description: The Commander of the Department of the Mississippi was a senior Union Army command role during the American Civil War, overseeing major military operations across the Mississippi Valley and surrounding regions.
-
A.
Commander-in-Chief South
Commander-in-Chief South was the senior German military command responsible for directing Axis operations in the Mediterranean and southern European theaters during World War II.
-
B.
Adjutant General of Missouri
The Adjutant General of Missouri is the senior military official responsible for overseeing the Missouri National Guard and advising the state government on military affairs.
-
C.
Chief Signal Officer of the U.S. Army
The Chief Signal Officer of the U.S. Army is the senior officer responsible for overseeing the Army’s communications and signal operations, including the development and management of military communication systems and technologies.
-
D.
Army Commander of Southern Command
The Army Commander of Southern Command is the senior-most Indian Army officer responsible for overseeing all army operations, administration, and readiness in India’s Southern Command theatre.
-
E.
Commandant of the Coast Guard
The Commandant of the Coast Guard is the highest-ranking officer and service chief of the United States Coast Guard, responsible for its overall leadership, operations, and strategic direction.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army position
ⓘ
military command position ⓘ |
| appliesToJurisdiction | Department of the Mississippi ⓘ |
| basedIn |
St. Louis, Missouri, United States
ⓘ
surface form:
St. Louis, Missouri
|
| conflict | American Civil War ⓘ |
| country | United States of America ⓘ |
| dissolved | 1862 ⓘ |
| firstHolder |
Henry W. Halleck
ⓘ
surface form:
Henry Wager Halleck
|
| hasAuthorityOver |
allocation of troops and supplies in the Mississippi Valley
ⓘ
coordination of riverine and land operations ⓘ operational planning in the Western Theater ⓘ |
| hasDuties |
coordination of multiple field armies
ⓘ
oversight of major Union military operations in the Mississippi Valley ⓘ strategic planning for campaigns along the Mississippi River ⓘ supervision of subordinate department and district commanders ⓘ |
| hasHistoricalSignificance |
centralization of Union command in the Western Theater
ⓘ
development of large-scale theater-level command structures in the Union Army ⓘ |
| historicalPeriod | 19th century ⓘ |
| inception | 1861 ⓘ |
| locationOfHeadquarters |
St. Louis, Missouri, United States
ⓘ
surface form:
St. Louis, Missouri
|
| militaryBranch | United States Army ⓘ |
| notableCommander |
Henry W. Halleck
ⓘ
surface form:
Henry Wager Halleck
|
| notableEvent |
Union campaigns to secure the Mississippi River
ⓘ
coordination of operations leading to early Union successes in the Western Theater ⓘ |
| operatedInTheTerritory |
Midwestern United States
ⓘ
Upper Mississippi Valley ⓘ
surface form:
Mississippi Valley
Western Theater of the American Civil War ⓘ |
| partOf | Union Army ⓘ |
| rankRequirement | major general ⓘ |
| reasonForAbolition | reorganization of Union Western Theater commands ⓘ |
| replacedBy |
Commander, Department of the Mississippi
self-linksurface differs
ⓘ
surface form:
Commander, Department of the Missouri
other reorganized Western Theater departments ⓘ |
| responsibleFor |
Army of the Mississippi
ⓘ
Army of the Tennessee ⓘ District of Cairo ⓘ West Tennessee ⓘ
surface form:
District of West Tennessee
Union forces along the Mississippi River ⓘ Union forces in Kentucky ⓘ Union forces in Missouri ⓘ |
| subordinateTo |
Commanding General of the United States Army
ⓘ
surface form:
General-in-Chief of the United States Army
United States Department of War ⓘ |
| usedInWarfare |
combined arms operations
ⓘ
riverine warfare ⓘ |
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: Commander, Department of the Mississippi Description of subject: The Commander of the Department of the Mississippi was a senior Union Army command role during the American Civil War, overseeing major military operations across the Mississippi Valley and surrounding regions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Commander, Department of the Mississippi
→
replacedBy
→
Commander, Department of the Mississippi
self-linksurface differs
ⓘ
this entity surface form:
Commander, Department of the Missouri