Mary Ann Day
E778757
Mary Ann Day was the second wife of American abolitionist John Brown and the mother of several of his children, who supported his family during his militant anti-slavery activities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mary Ann Day canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9109271 — 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 Ann Day Context triple: [John Brown, spouse, Mary Ann Day]
-
A.
Mary Ann Pearce
Mary Ann Pearce is known as the wife of American crime novelist Mickey Spillane.
-
B.
Mary Anne Grindall
Mary Anne Grindall was the wife of British civil servant, political reformer, and ornithologist Allan Octavian Hume.
-
C.
Mary Ellen
Mary Ellen is a feminine given name of English origin, often used as a compound of "Mary" and "Ellen."
-
D.
Mary Ann Bertles
Mary Ann Bertles was the wife of U.S. Supreme Court Justice Potter Stewart.
-
E.
Mary Ann Bernard
Mary Ann Bernard is a film editor best known for her work on the biographical drama "Behind the Candelabra."
- 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 Ann Day Target entity description: Mary Ann Day was the second wife of American abolitionist John Brown and the mother of several of his children, who supported his family during his militant anti-slavery activities.
-
A.
Mary Ann Pearce
Mary Ann Pearce is known as the wife of American crime novelist Mickey Spillane.
-
B.
Mary Anne Grindall
Mary Anne Grindall was the wife of British civil servant, political reformer, and ornithologist Allan Octavian Hume.
-
C.
Mary Ellen
Mary Ellen is a feminine given name of English origin, often used as a compound of "Mary" and "Ellen."
-
D.
Mary Ann Bertles
Mary Ann Bertles was the wife of U.S. Supreme Court Justice Potter Stewart.
-
E.
Mary Ann Bernard
Mary Ann Bernard is a film editor best known for her work on the biographical drama "Behind the Candelabra."
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
historical figure
ⓘ
human ⓘ |
| alsoKnownAs |
Mary Ann Brown
ⓘ
linked to:
Mary Ann Day Brown
|
| associatedWith |
American abolitionist movement
ⓘ
John Brown ⓘ |
| centuryOfActivity | 19th century ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| ethnicGroup | American ⓘ |
| hasChildWith | John Brown ⓘ |
| maritalStatus | married ⓘ |
| movement | abolitionism ⓘ |
| name | Mary Ann Day ⓘ |
| notableFor |
being the second wife of abolitionist John Brown
ⓘ
supporting John Brown’s family during his militant anti-slavery activities ⓘ |
| occupation | homemaker ⓘ |
| placeOfActivity | United States of America ⓘ |
| relative | children of John Brown ⓘ |
| residence | United States of America ⓘ |
| roleInFamily | caregiver to John Brown’s children ⓘ |
| sexOrGender | female ⓘ |
| spouse |
John Brown
ⓘ
Mary Ann Day ⓘ |
| spouseOrder | second wife of John Brown ⓘ |
| supported | John Brown’s anti-slavery activities ⓘ |
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 Ann Day Description of subject: Mary Ann Day was the second wife of American abolitionist John Brown and the mother of several of his children, who supported his family during his militant anti-slavery activities.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.