Washington Arsenal Penitentiary, Washington, D.C.
E127156
Washington Arsenal Penitentiary in Washington, D.C. was a Civil War–era military prison best known as the site where several conspirators in the assassination of President Abraham Lincoln, including David Herold, were executed.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Old Arsenal Penitentiary, Washington, D.C. | 2 |
| Washington Arsenal Penitentiary, Washington, D.C. canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1101754 — 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: Washington Arsenal Penitentiary, Washington, D.C. Context triple: [David Herold, placeOfExecution, Washington Arsenal Penitentiary, Washington, D.C.]
-
A.
Lincoln Prison
Lincoln Prison is a correctional facility located in the city of Lincoln in Lincolnshire, England.
-
B.
District of Columbia Department of Corrections
The District of Columbia Department of Corrections is the local government agency responsible for operating the jail and detention facilities and overseeing the custody and rehabilitation of incarcerated individuals in Washington, D.C.
-
C.
United States Penitentiary, Leavenworth
United States Penitentiary, Leavenworth is a historic federal prison in Kansas known for housing some of the most notorious American criminals of the 20th century.
-
D.
Suitland Federal Center
Suitland Federal Center is a major U.S. federal office complex in Suitland, Maryland, that houses several government agencies and serves as a key hub for federal statistical and intelligence operations.
-
E.
Atlanta U.S. Penitentiary
Atlanta U.S. Penitentiary is a high-security federal prison in Atlanta, Georgia, known for housing notorious criminals including organized crime figures like Al Capone.
- 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: Washington Arsenal Penitentiary, Washington, D.C. Target entity description: Washington Arsenal Penitentiary in Washington, D.C. was a Civil War–era military prison best known as the site where several conspirators in the assassination of President Abraham Lincoln, including David Herold, were executed.
-
A.
Lincoln Prison
Lincoln Prison is a correctional facility located in the city of Lincoln in Lincolnshire, England.
-
B.
District of Columbia Department of Corrections
The District of Columbia Department of Corrections is the local government agency responsible for operating the jail and detention facilities and overseeing the custody and rehabilitation of incarcerated individuals in Washington, D.C.
-
C.
United States Penitentiary, Leavenworth
United States Penitentiary, Leavenworth is a historic federal prison in Kansas known for housing some of the most notorious American criminals of the 20th century.
-
D.
Suitland Federal Center
Suitland Federal Center is a major U.S. federal office complex in Suitland, Maryland, that houses several government agencies and serves as a key hub for federal statistical and intelligence operations.
-
E.
Atlanta U.S. Penitentiary
Atlanta U.S. Penitentiary is a high-security federal prison in Atlanta, Georgia, known for housing notorious criminals including organized crime figures like Al Capone.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Civil War–era prison
ⓘ
military prison ⓘ |
| associatedWithEvent |
Assassination of Abraham Lincoln
ⓘ
surface form:
assassination of Abraham Lincoln
|
| associatedWithPerson |
David Herold
ⓘ
George Atzerodt ⓘ John Wilkes Booth ⓘ Lewis Powell ⓘ Mary Surratt ⓘ |
| city | Washington, D.C. ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| demolishedOrRepurposed | no longer in original prison use ⓘ |
| executionMethodUsed | hanging ⓘ |
| function |
detention of military prisoners
ⓘ
detention of political prisoners ⓘ |
| historicalRole | Union military prison ⓘ |
| jurisdiction |
United States government
ⓘ
surface form:
United States federal government
|
| knownFor | execution of Lincoln assassination conspirators ⓘ |
| languageOfAdministration | English ⓘ |
| locatedIn | Washington, D.C. ⓘ |
| locatedNear | Potomac River ⓘ |
| locatedOn | Arsenal grounds ⓘ |
| notableIn |
history of presidential assassinations in the United States
ⓘ
history of the American Civil War ⓘ |
| operatedBy | United States Army ⓘ |
| partOf | Washington Arsenal ⓘ |
| securityClass | high security ⓘ |
| siteOf |
execution of David Herold
ⓘ
execution of George Atzerodt ⓘ execution of Lewis Powell ⓘ execution of Mary Surratt ⓘ |
| state | District of Columbia ⓘ |
| timePeriod | 19th century ⓘ |
| usedBy |
United States military commission
ⓘ
surface form:
U.S. military commission
|
| usedDuring | American Civil War ⓘ |
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: Washington Arsenal Penitentiary, Washington, D.C. Description of subject: Washington Arsenal Penitentiary in Washington, D.C. was a Civil War–era military prison best known as the site where several conspirators in the assassination of President Abraham Lincoln, including David Herold, were executed.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Old Arsenal Penitentiary, Washington, D.C.
this entity surface form:
Old Arsenal Penitentiary, Washington, D.C.