Camp Jackson Massacre
E1019856
The Camp Jackson Massacre was an 1861 Civil War–era incident in St. Louis, Missouri, in which Union troops fired on pro-Confederate militia and civilians, killing and wounding dozens and sharply escalating local tensions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Camp Jackson Massacre canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13095137 — 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: Camp Jackson Massacre Context triple: [Camp Jackson Affair, alsoKnownAs, Camp Jackson Massacre]
-
A.
Dade’s Massacre
Dade’s Massacre was an 1835 ambush by Seminole warriors on U.S. troops in Florida that helped ignite the Second Seminole War.
-
B.
Tol Plantation massacre
The Tol Plantation massacre was a World War II atrocity in which Japanese forces executed over 150 Australian prisoners of war and civilians on New Britain in 1942.
-
C.
Ellenton massacre
The Ellenton massacre was an 1876 episode of racial and political violence in South Carolina in which white supremacist paramilitaries attacked and killed numerous Black residents to suppress their civil and voting rights during Reconstruction.
-
D.
Fort Mims massacre
The Fort Mims massacre was an 1813 attack during the Creek War in which Red Stick Creek warriors overran a frontier fort in present-day Alabama, killing hundreds of settlers and militia and galvanizing American military response against the Creek.
-
E.
Pavonia Massacre
The Pavonia Massacre was a 1643 attack by Dutch colonists on Lenape Native Americans in present-day Jersey City, New Jersey, that helped ignite the broader conflict known as Kieft's War.
- 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: Camp Jackson Massacre Target entity description: The Camp Jackson Massacre was an 1861 Civil War–era incident in St. Louis, Missouri, in which Union troops fired on pro-Confederate militia and civilians, killing and wounding dozens and sharply escalating local tensions.
-
A.
Dade’s Massacre
Dade’s Massacre was an 1835 ambush by Seminole warriors on U.S. troops in Florida that helped ignite the Second Seminole War.
-
B.
Tol Plantation massacre
The Tol Plantation massacre was a World War II atrocity in which Japanese forces executed over 150 Australian prisoners of war and civilians on New Britain in 1942.
-
C.
Ellenton massacre
The Ellenton massacre was an 1876 episode of racial and political violence in South Carolina in which white supremacist paramilitaries attacked and killed numerous Black residents to suppress their civil and voting rights during Reconstruction.
-
D.
Fort Mims massacre
The Fort Mims massacre was an 1813 attack during the Creek War in which Red Stick Creek warriors overran a frontier fort in present-day Alabama, killing hundreds of settlers and militia and galvanizing American military response against the Creek.
-
E.
Pavonia Massacre
The Pavonia Massacre was a 1643 attack by Dutch colonists on Lenape Native Americans in present-day Jersey City, New Jersey, that helped ignite the broader conflict known as Kieft's War.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
American Civil War incident
ⓘ
historical event ⓘ massacre ⓘ |
| aftermath |
radicalization of pro-Confederate sentiment in Missouri
ⓘ
riots and unrest in St. Louis ⓘ strengthening of Union military presence in Missouri ⓘ |
| alsoKnownAs |
Camp Jackson Affair
NERFINISHED
ⓘ
Camp Jackson Incident NERFINISHED ⓘ |
| belligerentDescription | pro-Union troops vs. pro-Confederate militia ⓘ |
| casualties | dozens killed and wounded ⓘ |
| cause |
fear of secessionist control of St. Louis arsenal
ⓘ
tensions over Missouri’s allegiance in the Civil War ⓘ |
| civilianCasualties | multiple civilian deaths ⓘ |
| combatant |
Missouri Volunteer Militia
NERFINISHED
ⓘ
Union forces ⓘ |
| commander | Nathaniel Lyon NERFINISHED ⓘ |
| commanderOfUnionForces | Nathaniel Lyon NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | May 10, 1861 ⓘ |
| hasCategory |
1861 in Missouri
ⓘ
History of St. Louis, Missouri NERFINISHED ⓘ Massacres of the American Civil War NERFINISHED ⓘ |
| hasLocation |
St. Louis, Missouri
NERFINISHED
ⓘ
United States NERFINISHED ⓘ |
| historicalSignificance |
example of urban violence in the American Civil War
ⓘ
key early event in determining Missouri’s status in the Civil War ⓘ |
| involvedPerson |
Claiborne Fox Jackson
NERFINISHED
ⓘ
Francis Preston Blair Jr. NERFINISHED ⓘ Sterling Price NERFINISHED ⓘ |
| locatedInPresentDay | St. Louis city NERFINISHED ⓘ |
| militaryCasualties | deaths and wounds among Missouri Volunteer Militia ⓘ |
| partOf | American Civil War in Missouri NERFINISHED ⓘ |
| perpetratorDescription | Union volunteer regiments firing on crowd ⓘ |
| politicalContext |
Union effort to prevent Missouri’s secession
ⓘ
struggle over control of Missouri state government ⓘ |
| precededBy | seizure of Liberty Arsenal in Missouri ⓘ |
| relatedTo |
Missouri secession crisis
NERFINISHED
ⓘ
Price–Harney Truce NERFINISHED ⓘ St. Louis Arsenal NERFINISHED ⓘ |
| result |
deaths of civilians and militia
ⓘ
escalation of tensions in St. Louis ⓘ increased Union control in Missouri ⓘ wounding of civilians and militia ⓘ |
| sideSupportedByMilitia | Confederate States of America NERFINISHED ⓘ |
| tookPlaceAt | Camp Jackson NERFINISHED ⓘ |
| triggeredBy |
Union seizure of Camp Jackson
ⓘ
arrest of Missouri Volunteer Militia ⓘ |
| year | 1861 ⓘ |
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: Camp Jackson Massacre Description of subject: The Camp Jackson Massacre was an 1861 Civil War–era incident in St. Louis, Missouri, in which Union troops fired on pro-Confederate militia and civilians, killing and wounding dozens and sharply escalating local tensions.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.