Mary Surratt’s boarding house, Washington, D.C., United States
E535314
Mary Surratt’s boarding house in Washington, D.C., was a key meeting place for the conspirators involved in the assassination of President Abraham Lincoln.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T5649928 — 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: Mary Surratt’s boarding house, Washington, D.C., United States Context triple: [Lewis Powell, capturedAt, Mary Surratt’s boarding house, Washington, D.C., United States]
-
A.
Mary Surratt
Mary Surratt was an American boardinghouse owner who became the first woman executed by the U.S. federal government for her role in the conspiracy to assassinate President Abraham Lincoln.
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B.
Ford's Theatre
Ford's Theatre is a historic playhouse in Washington, D.C., best known as the site where President Abraham Lincoln was fatally shot in 1865.
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C.
John Harrison Surratt Sr.
John Harrison Surratt Sr. was an American innkeeper and Confederate sympathizer whose family, including his wife Mary Surratt and son John Jr., became deeply entangled in the conspiracy to assassinate President Abraham Lincoln.
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D.
Anna Surratt
Anna Surratt was the daughter of Lincoln assassination conspirator Mary Surratt, known for her efforts to plead for her mother's life before the execution.
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E.
Decatur House, Washington, D.C.
Decatur House in Washington, D.C. is a historic early 19th-century mansion near the White House, renowned as one of the capital’s oldest surviving residences and a significant example of Federal-style architecture.
- 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: Mary Surratt’s boarding house, Washington, D.C., United States Target entity description: Mary Surratt’s boarding house in Washington, D.C., was a key meeting place for the conspirators involved in the assassination of President Abraham Lincoln.
-
A.
Mary Surratt
Mary Surratt was an American boardinghouse owner who became the first woman executed by the U.S. federal government for her role in the conspiracy to assassinate President Abraham Lincoln.
-
B.
Ford's Theatre
Ford's Theatre is a historic playhouse in Washington, D.C., best known as the site where President Abraham Lincoln was fatally shot in 1865.
-
C.
John Harrison Surratt Sr.
John Harrison Surratt Sr. was an American innkeeper and Confederate sympathizer whose family, including his wife Mary Surratt and son John Jr., became deeply entangled in the conspiracy to assassinate President Abraham Lincoln.
-
D.
Anna Surratt
Anna Surratt was the daughter of Lincoln assassination conspirator Mary Surratt, known for her efforts to plead for her mother's life before the execution.
-
E.
Decatur House, Washington, D.C.
Decatur House in Washington, D.C. is a historic early 19th-century mansion near the White House, renowned as one of the capital’s oldest surviving residences and a significant example of Federal-style architecture.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
assassination-related site
ⓘ
boarding house ⓘ historic house ⓘ |
| architecturalStyle | 19th-century row house ⓘ |
| associatedWithEvent |
assassination of Abraham Lincoln
ⓘ
linked to:
Assassination of Abraham Lincoln
plot to kidnap Abraham Lincoln ⓘ trial of the Lincoln assassination conspirators ⓘ |
| associatedWithPerson |
Abraham Lincoln
ⓘ
David Herold ⓘ Dr. Samuel Mudd ⓘ George Atzerodt ⓘ John Surratt ⓘ
linked to:
John H. Surratt
John Wilkes Booth ⓘ Lewis Powell ⓘ Mary Surratt ⓘ |
| category |
Abraham Lincoln assassination
ⓘ
linked to:
Assassination of Abraham Lincoln
Buildings and structures in Washington, D.C. ⓘ Historic boarding houses in the United States ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentUse | commercial building ⓘ |
| functionDuring1860s | boarding house ⓘ |
| hasHeritageStatus | recognized as a site of historical interest related to Lincoln’s assassination ⓘ |
| historicalSignificance | site linked to planning of the assassination of a U.S. president ⓘ |
| locatedIn |
United States
ⓘ
linked to:
United States of America
Washington, D.C. ⓘ |
| locatedInNeighborhood | Downtown Washington, D.C. ⓘ |
| locatedOn | H Street NW ⓘ |
| mentionedIn | historical accounts of the Lincoln assassination ⓘ |
| namedAfter | Mary Surratt ⓘ |
| operatedBy | Mary Surratt ⓘ |
| ownedBy | Mary Surratt ⓘ |
| partOf | historic fabric of downtown Washington, D.C. ⓘ |
| roleInConspiracy |
meeting place for Lincoln assassination conspirators
ⓘ
planning site for kidnapping and assassination plots against Abraham Lincoln ⓘ |
| timePeriodOfNotability |
1860s
ⓘ
American Civil War era ⓘ |
| usedBy | conspirators in the assassination of Abraham Lincoln ⓘ |
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: Mary Surratt’s boarding house, Washington, D.C., United States Description of subject: Mary Surratt’s boarding house in Washington, D.C., was a key meeting place for the conspirators involved in the assassination of President Abraham Lincoln.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Mary Surratt’s boarding house, Washington, D.C., United States
linked to: Mary Surratt’s boarding house, Washington, D.C., United States
linked to: Mary Surratt’s boarding house, Washington, D.C., United States
linked to: Mary Surratt’s boarding house, Washington, D.C., United States