Holmesburg Prison

E130605

correctional facility defunct prison prison

Holmesburg Prison was a notorious Philadelphia correctional facility known for its harsh conditions, high-profile inmates, and later-revealed unethical medical experiments on prisoners.

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All labels observed (2)

Label	Occurrences
Holmesburg Prison canonical	10
Holmesburg Prison complex	1

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 ⓘ linked to: United States of America
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, Philadelphia, Pennsylvania ⓘ linked to: Holmesburg Pennsylvania ⓘ Philadelphia, Pennsylvania ⓘ linked to: Philadelphia
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	City of Philadelphia ⓘ linked to: 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 ⓘ