Mary McElroy
E659711
Mary McElroy was the sister and unofficial White House hostess of U.S. President Chester A. Arthur, known for managing social functions during his administration.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mary McElroy canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6914607 — 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 McElroy Context triple: [William Lewis Herndon Arthur, hasRelative, Mary McElroy]
-
A.
Margaret O'Leary
Margaret O'Leary is an Irish-born American nurse and educator known for her contributions to nursing practice and education in the United States.
-
B.
Margaret McGrath
Margaret McGrath was an American philanthropist and the first wife of U.S. Vice President Nelson A. Rockefeller.
-
C.
Mary Mulhern
Mary Mulhern was an American actress best known for her brief Hollywood career in the silent film era and her marriage to actor Jack Pickford.
-
D.
Maureen Monaghan
Maureen Monaghan is the mother of English actor Dominic Monaghan, known for his roles in "The Lord of the Rings" film trilogy and the television series "Lost."
-
E.
Mary O'Leary
Mary O'Leary is a notable individual distinguished enough to be specifically recognized as a prominent bearer of the O'Leary surname.
- 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 McElroy Target entity description: Mary McElroy was the sister and unofficial White House hostess of U.S. President Chester A. Arthur, known for managing social functions during his administration.
-
A.
Margaret O'Leary
Margaret O'Leary is an Irish-born American nurse and educator known for her contributions to nursing practice and education in the United States.
-
B.
Margaret McGrath
Margaret McGrath was an American philanthropist and the first wife of U.S. Vice President Nelson A. Rockefeller.
-
C.
Mary Mulhern
Mary Mulhern was an American actress best known for her brief Hollywood career in the silent film era and her marriage to actor Jack Pickford.
-
D.
Maureen Monaghan
Maureen Monaghan is the mother of English actor Dominic Monaghan, known for his roles in "The Lord of the Rings" film trilogy and the television series "Lost."
-
E.
Mary O'Leary
Mary O'Leary is a notable individual distinguished enough to be specifically recognized as a prominent bearer of the O'Leary surname.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
White House hostess
ⓘ
human ⓘ |
| affiliation | Arthur administration ⓘ |
| connectedTo | Presidency of Chester A. Arthur ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employer | White House ⓘ |
| familyName | McElroy ⓘ |
| givenName | Mary ⓘ |
| hasHonorificTitle | White House hostess ⓘ |
| hasRole | First Lady of the United States (de facto) ⓘ |
| languagesSpokenWrittenOrSigned | English ⓘ |
| notableFor |
managing social functions during the Chester A. Arthur administration
ⓘ
serving as social figurehead in place of a presidential spouse ⓘ |
| notableRole | unofficial White House hostess ⓘ |
| notableWork | management of White House social functions ⓘ |
| occupation | social hostess ⓘ |
| partOf | social life of the Arthur presidency ⓘ |
| placeOfActivity | United States federal government social sphere ⓘ |
| positionHeld | White House hostess ⓘ |
| relative | Chester A. Arthur ⓘ |
| residence |
New York (state)
ⓘ
linked to:
New York State
Washington, D.C. ⓘ |
| sexOrGender | female ⓘ |
| sibling | Chester A. Arthur ⓘ |
| workLocation | White House ⓘ |
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 McElroy Description of subject: Mary McElroy was the sister and unofficial White House hostess of U.S. President Chester A. Arthur, known for managing social functions during his administration.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.