Mortimer Caplin
E167375
Mortimer Caplin was an American lawyer, law professor, and public official best known for serving as U.S. Commissioner of Internal Revenue under President John F. Kennedy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mortimer Caplin canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T1268047 — 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: Mortimer Caplin Context triple: [Commissioner of Internal Revenue, positionHeldBy, Mortimer Caplin]
-
A.
Selden Chapin
Selden Chapin was an American diplomat and career Foreign Service officer who served in several key ambassadorial posts for the United States during the mid-20th century.
-
B.
Mortimer Wilson
Mortimer Wilson was an American composer and music educator best known for his orchestral scores for early silent films and concert works in the early 20th century.
-
C.
Daniel Drew
Daniel Drew was a 19th-century American financier and speculator notorious for his role in railroad wars and stock market manipulation on Wall Street.
-
D.
Thomas W. Lamont
Thomas W. Lamont was a prominent American banker and philanthropist associated with J.P. Morgan & Co. whose support for education and the arts led to institutions such as Harvard’s Lamont Library bearing his name.
-
E.
Alvin Wyckoff
Alvin Wyckoff was an American cinematographer of the silent film era, known for his innovative camera work on numerous early Hollywood productions.
- 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: Mortimer Caplin Target entity description: Mortimer Caplin was an American lawyer, law professor, and public official best known for serving as U.S. Commissioner of Internal Revenue under President John F. Kennedy.
-
A.
Selden Chapin
Selden Chapin was an American diplomat and career Foreign Service officer who served in several key ambassadorial posts for the United States during the mid-20th century.
-
B.
Mortimer Wilson
Mortimer Wilson was an American composer and music educator best known for his orchestral scores for early silent films and concert works in the early 20th century.
-
C.
Daniel Drew
Daniel Drew was a 19th-century American financier and speculator notorious for his role in railroad wars and stock market manipulation on Wall Street.
-
D.
Thomas W. Lamont
Thomas W. Lamont was a prominent American banker and philanthropist associated with J.P. Morgan & Co. whose support for education and the arts led to institutions such as Harvard’s Lamont Library bearing his name.
-
E.
Alvin Wyckoff
Alvin Wyckoff was an American cinematographer of the silent film era, known for his innovative camera work on numerous early Hollywood productions.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
law professor ⓘ lawyer ⓘ public official ⓘ tax law scholar ⓘ |
| appointedBy | John F. Kennedy ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| educatedAt |
New York University School of Law
ⓘ
University of Virginia ⓘ |
| employer |
Caplin & Drysdale
ⓘ
Internal Revenue Service ⓘ University of Virginia School of Law ⓘ |
| familyName | Caplin ⓘ |
| fieldOfWork |
legal education
ⓘ
public finance ⓘ tax law ⓘ |
| genre | tax policy ⓘ |
| givenName | Mortimer ⓘ |
| languageOfWorkOrName | English ⓘ |
| memberOf |
Democratic Party (United States)
ⓘ
linked to:
Democratic Party
|
| name | Mortimer Caplin ⓘ |
| notableAchievement |
influential figure in U.S. federal tax administration
ⓘ
led efforts to improve taxpayer services at the IRS ⓘ |
| notableRole |
U.S. Commissioner of Internal Revenue under President John F. Kennedy
ⓘ
professor of law at the University of Virginia School of Law ⓘ |
| notableWork |
founding of Caplin & Drysdale, Chartered
ⓘ
modernization of the Internal Revenue Service in the 1960s ⓘ |
| occupation |
law professor
ⓘ
lawyer ⓘ public official ⓘ tax administrator ⓘ |
| positionHeld | Commissioner of Internal Revenue ⓘ |
| residence |
Virginia
ⓘ
Washington, D.C. ⓘ |
| workLocation |
Charlottesville, Virginia
ⓘ
Washington, D.C. ⓘ |
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: Mortimer Caplin Description of subject: Mortimer Caplin was an American lawyer, law professor, and public official best known for serving as U.S. Commissioner of Internal Revenue under President John F. Kennedy.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.