Mayer Lehman
E287939
Mayer Lehman was a 19th-century German-born American banker and co-founder of the Lehman Brothers investment firm, and the patriarch of the prominent Lehman family.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mayer Lehman canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2674222 — 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: Mayer Lehman Context triple: [Herbert H. Lehman, father, Mayer Lehman]
-
A.
Absalom Lehman
Absalom Lehman was a 19th-century rancher and explorer best known for discovering the limestone caverns now preserved as Lehman Caves in Nevada’s Great Basin National Park.
-
B.
J. P. Morgan
J. P. Morgan was a powerful American financier and banker who dominated corporate finance and industrial consolidation in the late 19th and early 20th centuries.
-
C.
John A. Paulson
John A. Paulson is an American billionaire hedge fund manager and philanthropist known for his hugely profitable bet against the U.S. housing market before the 2008 financial crisis.
-
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.
Henry Kravis
Henry Kravis is an American billionaire businessman and co-founder of the private equity firm Kohlberg Kravis Roberts & Co. (KKR), known as a pioneer of leveraged buyouts.
- 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: Mayer Lehman Target entity description: Mayer Lehman was a 19th-century German-born American banker and co-founder of the Lehman Brothers investment firm, and the patriarch of the prominent Lehman family.
-
A.
Absalom Lehman
Absalom Lehman was a 19th-century rancher and explorer best known for discovering the limestone caverns now preserved as Lehman Caves in Nevada’s Great Basin National Park.
-
B.
J. P. Morgan
J. P. Morgan was a powerful American financier and banker who dominated corporate finance and industrial consolidation in the late 19th and early 20th centuries.
-
C.
John A. Paulson
John A. Paulson is an American billionaire hedge fund manager and philanthropist known for his hugely profitable bet against the U.S. housing market before the 2008 financial crisis.
-
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.
Henry Kravis
Henry Kravis is an American billionaire businessman and co-founder of the private equity firm Kohlberg Kravis Roberts & Co. (KKR), known as a pioneer of leveraged buyouts.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
German-American
ⓘ
banker ⓘ businessperson ⓘ person ⓘ |
| associatedWith |
Lehman Brothers
ⓘ
surface form:
Lehman Brothers investment bank
|
| businessDomain |
commodities trading
ⓘ
investment banking ⓘ |
| centuryOfActivity | 19th century ⓘ |
| coFounderOf | Lehman Brothers ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| countryOfOrigin | Germany ⓘ |
| ethnicOrigin | German ⓘ |
| familyName |
Lehman Brothers
ⓘ
surface form:
Lehman
|
| fieldOfWork |
banking
ⓘ
finance ⓘ investment ⓘ |
| givenName | Mayer ⓘ |
| hasRelative | Lehman family ⓘ |
| immigrationStatus | immigrant from Germany to the United States ⓘ |
| memberOf | Lehman family ⓘ |
| notableFamily | Lehman family ⓘ |
| notableFor |
co-founding Lehman Brothers
ⓘ
leadership in the Lehman family ⓘ |
| notableWork | co-founding Lehman Brothers investment firm ⓘ |
| occupation |
banker
ⓘ
businessman ⓘ |
| residence | United States of America ⓘ |
| role | patriarch of the Lehman family ⓘ |
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: Mayer Lehman Description of subject: Mayer Lehman was a 19th-century German-born American banker and co-founder of the Lehman Brothers investment firm, and the patriarch of the prominent Lehman family.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.