Holmesburg Prison
E130605
Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Holmesburg Prison canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1114041 — 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: Holmesburg Prison Context triple: [Willie Sutton, escapeFrom, Holmesburg Prison]
-
A.
Lincoln Prison
Lincoln Prison is a correctional facility located in the city of Lincoln in Lincolnshire, England.
-
B.
Birmingham city jail
Birmingham city jail is the Alabama detention facility where Martin Luther King Jr. was incarcerated in 1963 and wrote his influential "Letter from Birmingham Jail" during the civil rights movement.
-
C.
Lewisburg Federal Penitentiary
Lewisburg Federal Penitentiary is a high-security United States federal prison for male inmates located in Lewisburg, Pennsylvania.
-
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.
Allegheny County Jail
Allegheny County Jail is a historic Romanesque Revival correctional facility in Pittsburgh, Pennsylvania, renowned as one of architect Henry Hobson Richardson’s most significant works.
- 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: Holmesburg Prison Target entity description: Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.
-
A.
Lincoln Prison
Lincoln Prison is a correctional facility located in the city of Lincoln in Lincolnshire, England.
-
B.
Birmingham city jail
Birmingham city jail is the Alabama detention facility where Martin Luther King Jr. was incarcerated in 1963 and wrote his influential "Letter from Birmingham Jail" during the civil rights movement.
-
C.
Lewisburg Federal Penitentiary
Lewisburg Federal Penitentiary is a high-security United States federal prison for male inmates located in Lewisburg, Pennsylvania.
-
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.
Allegheny County Jail
Allegheny County Jail is a historic Romanesque Revival correctional facility in Pittsburgh, Pennsylvania, renowned as one of architect Henry Hobson Richardson’s most significant works.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
correctional facility
ⓘ
defunct prison ⓘ prison ⓘ |
| afterUse |
film and television location
ⓘ
limited training facility for law enforcement ⓘ |
| architecturalStyle | radial plan ⓘ |
| closed | 1995 ⓘ |
| constructionStart | 1894 ⓘ |
| coordinateLocation | 40.035°N 75.022°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| disestablished | 1995 ⓘ |
| ethicalIssue |
exploitation of incarcerated people
ⓘ
lack of informed consent in experiments ⓘ |
| experimentProgramEnd | 1970s ⓘ |
| experimentProgramStart | 1950s ⓘ |
| hasFeature |
cell blocks arranged in spokes
ⓘ
high stone walls ⓘ |
| hasImage | Holmesburg_Prison_exterior_photograph ⓘ |
| hasLegalCase | lawsuits by former inmates over medical experiments ⓘ |
| inception | 1896 ⓘ |
| knownFor |
chemical exposure experiments
ⓘ
dermatological experiments ⓘ harsh conditions ⓘ overcrowding ⓘ radiation experiments ⓘ unethical medical experiments on prisoners ⓘ violence ⓘ |
| locatedIn |
Holmesburg
ⓘ
surface form:
Holmesburg, Philadelphia, Pennsylvania
Pennsylvania ⓘ Philadelphia ⓘ
surface form:
Philadelphia, Pennsylvania
|
| locatedNear |
Delaware River
ⓘ
Holmesburg neighborhood ⓘ |
| medicalExperimentsConductedBy |
Albert M. Kligman
ⓘ
University of Pennsylvania-affiliated researchers ⓘ |
| notableInmate |
Gary Heidnik
ⓘ
Russell Shoatz ⓘ Willie Horton ⓘ |
| operatedBy | Philadelphia Prison System ⓘ |
| ownedBy |
Philadelphia
ⓘ
surface form:
City of Philadelphia
|
| partOf | Philadelphia Prison System ⓘ |
| regulatoryImpact | contributed to debates on human subjects research ethics in the United States ⓘ |
| securityClass | maximum security ⓘ |
| status | closed ⓘ |
| subjectOf |
Acres of Skin
ⓘ
Acres of Skin: Human Experiments at Holmesburg Prison ⓘ The Philadelphia Inquirer investigative reports ⓘ documentaries on prison experiments ⓘ |
| usedFor |
maximum security confinement
ⓘ
pre-trial detention ⓘ short-term sentences ⓘ |
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: Holmesburg Prison Description of subject: Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.