William Henry Pratt
E832413
William Henry Pratt, better known by his stage name Boris Karloff, was a renowned English actor famous for his iconic roles in classic horror films such as Frankenstein.
All labels observed (1)
| Label | Occurrences |
|---|---|
| William Henry Pratt canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9098518 — 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: William Henry Pratt Context triple: [Boris Karloff, birthName, William Henry Pratt]
-
A.
Thomas Pratt
Thomas Pratt was an American film editor known for his work on numerous Hollywood productions during the mid-20th century.
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B.
Charles D. Norton
Charles D. Norton was an American figure notable for helping establish the American Cancer Society, a leading nonprofit organization dedicated to cancer research and patient support.
-
C.
William Tharp
William Tharp was a 19th-century American politician who served as the 36th Governor of Delaware.
-
D.
William Smith Jewett
William Smith Jewett was a 19th-century American painter known for his portraits and genre scenes.
-
E.
Solon Spencer Beman
Solon Spencer Beman was a prominent American architect best known for designing the model industrial town of Pullman in Chicago and numerous notable residential, commercial, and religious buildings in the late 19th and early 20th centuries.
- 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: William Henry Pratt Target entity description: William Henry Pratt, better known by his stage name Boris Karloff, was a renowned English actor famous for his iconic roles in classic horror films such as Frankenstein.
-
A.
Thomas Pratt
Thomas Pratt was an American film editor known for his work on numerous Hollywood productions during the mid-20th century.
-
B.
Charles D. Norton
Charles D. Norton was an American figure notable for helping establish the American Cancer Society, a leading nonprofit organization dedicated to cancer research and patient support.
-
C.
William Tharp
William Tharp was a 19th-century American politician who served as the 36th Governor of Delaware.
-
D.
William Smith Jewett
William Smith Jewett was a 19th-century American painter known for his portraits and genre scenes.
-
E.
Solon Spencer Beman
Solon Spencer Beman was a prominent American architect best known for designing the model industrial town of Pullman in Chicago and numerous notable residential, commercial, and religious buildings in the late 19th and early 20th centuries.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
English person
ⓘ
film actor ⓘ human ⓘ stage actor ⓘ voice actor ⓘ |
| awardReceived | Grammy Award for Best Recording for Children NERFINISHED ⓘ |
| birthName | William Henry Pratt NERFINISHED ⓘ |
| burialPlace | Guildford Crematorium, Surrey, England NERFINISHED ⓘ |
| causeOfDeath |
emphysema
ⓘ
pneumonia ⓘ |
| child | Sara Karloff NERFINISHED ⓘ |
| countryOfCitizenship | United Kingdom ⓘ |
| dateOfBirth | 1887-11-23 ⓘ |
| dateOfDeath | 1969-02-02 ⓘ |
| educatedAt |
Merchant Taylors' School, Northwood
NERFINISHED
ⓘ
Uppingham School NERFINISHED ⓘ |
| ethnicGroup | English people of Indian descent ⓘ |
| fieldOfWork |
cinema
ⓘ
radio ⓘ television ⓘ theatre ⓘ |
| genre | horror film ⓘ |
| languageOfWorkOrName | English ⓘ |
| memberOf | Screen Actors Guild NERFINISHED ⓘ |
| narrated | How the Grinch Stole Christmas! (1966 TV special) NERFINISHED ⓘ |
| notableWork |
Bride of Frankenstein
NERFINISHED
ⓘ
Frankenstein NERFINISHED ⓘ How the Grinch Stole Christmas! (1966 TV special) NERFINISHED ⓘ Son of Frankenstein NERFINISHED ⓘ The Black Cat (1934 film) NERFINISHED ⓘ The Mummy (1932 film) NERFINISHED ⓘ The Old Dark House (1932 film) NERFINISHED ⓘ |
| numberOfChildren | 1 ⓘ |
| occupation |
actor
ⓘ
film actor ⓘ stage actor ⓘ voice actor ⓘ |
| placeOfBirth | Camberwell, London, England NERFINISHED ⓘ |
| placeOfDeath | Midhurst, Sussex, England NERFINISHED ⓘ |
| portrayed | Frankenstein's monster NERFINISHED ⓘ |
| residence | Hollywood, California, United States NERFINISHED ⓘ |
| sibling | Sir John Thomas Pratt NERFINISHED ⓘ |
| spouse |
Dorothy Kelly
NERFINISHED
ⓘ
Dorothy Stine NERFINISHED ⓘ Evelyn Hope Helmore NERFINISHED ⓘ Grace Harding NERFINISHED ⓘ Helene Vivian Soule NERFINISHED ⓘ Montana Laurena Williams NERFINISHED ⓘ |
| stageName | Boris Karloff NERFINISHED ⓘ |
| yearsActive | 1909–1969 ⓘ |
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: William Henry Pratt Description of subject: William Henry Pratt, better known by his stage name Boris Karloff, was a renowned English actor famous for his iconic roles in classic horror films such as Frankenstein.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.