Brigadier General Nathaniel Lyon
E78845
Brigadier General Nathaniel Lyon was a Union Army officer in the American Civil War, known as the first Union general killed in the conflict and for his role in securing Missouri for the Union.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Union General Nathaniel Lyon | 3 |
| Brigadier General Nathaniel Lyon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T623982 — 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: Brigadier General Nathaniel Lyon Context triple: [Lyon County, Iowa, namedAfter, Brigadier General Nathaniel Lyon]
-
A.
John D. Schofield
John D. Schofield is a film producer best known for his work on major Hollywood productions, including the World War II drama "Enemy at the Gates."
-
B.
Robert S. Garnett
Robert S. Garnett was an American artist best known for creating the original design of the Great Seal of the State of California.
-
C.
Philip Sheridan
Philip Sheridan was a prominent Union general in the American Civil War who later became Commanding General of the U.S. Army during the Indian Wars and Reconstruction era.
-
D.
Winfield Scott Hancock
Winfield Scott Hancock was a prominent Union Army general during the American Civil War and later a Democratic presidential nominee in the 1880 United States election.
-
E.
Paul Quantrill
Paul Quantrill is a former Canadian Major League Baseball relief pitcher known for his durability and effectiveness out of the bullpen during the 1990s and early 2000s.
- 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: Brigadier General Nathaniel Lyon Target entity description: Brigadier General Nathaniel Lyon was a Union Army officer in the American Civil War, known as the first Union general killed in the conflict and for his role in securing Missouri for the Union.
-
A.
John D. Schofield
John D. Schofield is a film producer best known for his work on major Hollywood productions, including the World War II drama "Enemy at the Gates."
-
B.
Robert S. Garnett
Robert S. Garnett was an American artist best known for creating the original design of the Great Seal of the State of California.
-
C.
Philip Sheridan
Philip Sheridan was a prominent Union general in the American Civil War who later became Commanding General of the U.S. Army during the Indian Wars and Reconstruction era.
-
D.
Winfield Scott Hancock
Winfield Scott Hancock was a prominent Union Army general during the American Civil War and later a Democratic presidential nominee in the 1880 United States election.
-
E.
Paul Quantrill
Paul Quantrill is a former Canadian Major League Baseball relief pitcher known for his durability and effectiveness out of the bullpen during the 1990s and early 2000s.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War military personnel
ⓘ
Union Army general ⓘ person ⓘ |
| allegiance |
Union
ⓘ
United States of America ⓘ
surface form:
United States
|
| appointedBrigadierGeneral | 1861-05 ⓘ |
| battles |
American Civil War
ⓘ
Battle of Wilson’s Creek ⓘ Bleeding Kansas crisis ⓘ
surface form:
Bleeding Kansas
Camp Jackson Affair ⓘ Mexican–American War ⓘ |
| birthDate | 1818-07-14 ⓘ |
| birthPlace | Ashford, Connecticut ⓘ |
| burialPlace | Eastford, Connecticut ⓘ |
| causeOfDeath | killed in action ⓘ |
| commandedUnit |
Army of the Mississippi
ⓘ
surface form:
Army of the West (Union)
|
| conflict | American Civil War ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| deathDate | 1861-08-10 ⓘ |
| deathPlace | Wilson’s Creek, Missouri ⓘ |
| educatedAt | United States Military Academy ⓘ |
| ethnicity | American of English descent ⓘ |
| fullName | Nathaniel Lyon ⓘ |
| honoredBy |
naming of Lyon County, Iowa
ⓘ
naming of Lyon County, Kansas ⓘ naming of Lyon County, Nevada ⓘ |
| ideology | strong Unionist ⓘ |
| knownFor |
being the first Union general killed in the American Civil War
ⓘ
securing Missouri for the Union ⓘ |
| memorial | Lyon Monument at Wilson’s Creek National Battlefield ⓘ |
| militaryBranch | United States Army ⓘ |
| militaryRank | Brigadier General ⓘ |
| notableAction |
arrest and dispersal of pro-Confederate Missouri militia at Camp Jackson
ⓘ
preemptive moves to prevent Missouri’s secession ⓘ |
| positionHeld | Commander of the Union Army in Missouri ⓘ |
| preWarService |
served in the Mexican–American War
ⓘ
served in the Second Seminole War ⓘ |
| promotionReason | leadership in early Missouri operations ⓘ |
| serviceEndYear | 1861 ⓘ |
| serviceEntryYear | 1841 ⓘ |
| sideInCivilWar | Union ⓘ |
| stateAssociatedWith |
Connecticut
ⓘ
Missouri ⓘ |
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: Brigadier General Nathaniel Lyon Description of subject: Brigadier General Nathaniel Lyon was a Union Army officer in the American Civil War, known as the first Union general killed in the conflict and for his role in securing Missouri for the Union.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Union General Nathaniel Lyon
Lyon Monument at Wilson’s Creek National Battlefield
→
commemorates
→
Brigadier General Nathaniel Lyon
ⓘ
this entity surface form:
Union General Nathaniel Lyon
Lyon Monument at Wilson’s Creek National Battlefield
→
inHonorOf
→
Brigadier General Nathaniel Lyon
ⓘ
this entity surface form:
Union General Nathaniel Lyon