Joan Martin
E154636
Joan Martin was the third wife of U.S. Supreme Court Justice William O. Douglas, known primarily for her marriage to the long-serving and controversial jurist.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Joan Martin canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1058626 — 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: Joan Martin Context triple: [William O. Douglas, spouse, Joan Martin]
-
A.
Joanne Rogers
Joanne Rogers was an American concert pianist and television personality best known as the longtime wife and collaborator of children's television icon Fred Rogers and as a prominent advocate for his legacy.
-
B.
Margo Anderson
Margo Anderson is best known as a former wife of American country music star Kenny Rogers.
-
C.
Rachel Marron
Rachel Marron is a famous pop singer and actress who becomes the client and love interest of a former Secret Service agent in the romantic thriller film "The Bodyguard."
-
D.
Gloria Matthews
Gloria Matthews is a central character in Terry McMillan’s novel and its film adaptation "Waiting to Exhale," portrayed as a single mother navigating love, self-worth, and friendship.
-
E.
Joan Armstrong
Joan Armstrong is a notable individual distinguished enough to be specifically recognized among people sharing the Armstrong 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: Joan Martin Target entity description: Joan Martin was the third wife of U.S. Supreme Court Justice William O. Douglas, known primarily for her marriage to the long-serving and controversial jurist.
-
A.
Joanne Rogers
Joanne Rogers was an American concert pianist and television personality best known as the longtime wife and collaborator of children's television icon Fred Rogers and as a prominent advocate for his legacy.
-
B.
Margo Anderson
Margo Anderson is best known as a former wife of American country music star Kenny Rogers.
-
C.
Rachel Marron
Rachel Marron is a famous pop singer and actress who becomes the client and love interest of a former Secret Service agent in the romantic thriller film "The Bodyguard."
-
D.
Gloria Matthews
Gloria Matthews is a central character in Terry McMillan’s novel and its film adaptation "Waiting to Exhale," portrayed as a single mother navigating love, self-worth, and friendship.
-
E.
Joan Armstrong
Joan Armstrong is a notable individual distinguished enough to be specifically recognized among people sharing the Armstrong surname.
- F. None of above. chosen
Statements (9)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
human ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| notableFor |
longest-serving justice in the history of the U.S. Supreme Court
ⓘ
marriage to U.S. Supreme Court Justice William O. Douglas ⓘ |
| occupation | Associate Justice of the Supreme Court of the United States ⓘ |
| positionInSpouseOrder | third wife of William O. Douglas ⓘ |
| spouse |
Joan Martin
self-linksurface differs
ⓘ
William O. Douglas ⓘ |
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: Joan Martin Description of subject: Joan Martin was the third wife of U.S. Supreme Court Justice William O. Douglas, known primarily for her marriage to the long-serving and controversial jurist.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
William O. Douglas