United States Hydrographic Office
E158420
The United States Hydrographic Office was a U.S. Navy agency responsible for producing nautical charts, sailing directions, and other navigational publications to support safe maritime navigation.
All labels observed (3)
| Label | Occurrences |
|---|---|
| United States Hydrographic Office canonical | 3 |
| U.S. Hydrographic Office | 1 |
| U.S. Naval Observatory and Hydrographic Office | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1372711 — 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: United States Hydrographic Office Context triple: [The New American Practical Navigator, publisher, United States Hydrographic Office]
-
A.
United States Lighthouse Board
The United States Lighthouse Board was a 19th-century federal agency that modernized and oversaw the construction, maintenance, and operation of lighthouses and other navigational aids along U.S. coasts and waterways.
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B.
United States Lighthouse Service
The United States Lighthouse Service was a former U.S. federal agency responsible for the construction, maintenance, and operation of lighthouses and other navigational aids before its functions were absorbed into the Coast Guard.
-
C.
National Geodetic Survey
The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
-
D.
United States Maritime Service
The United States Maritime Service is a federal organization that trains and develops personnel for the U.S. merchant marine and maritime industry.
-
E.
Office of Coast Survey Navigation Services Division
The Office of Coast Survey Navigation Services Division is a unit within NOAA responsible for providing nautical charting, navigation information, and related services to support safe and efficient maritime transportation.
- 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: United States Hydrographic Office Target entity description: The United States Hydrographic Office was a U.S. Navy agency responsible for producing nautical charts, sailing directions, and other navigational publications to support safe maritime navigation.
-
A.
United States Lighthouse Board
The United States Lighthouse Board was a 19th-century federal agency that modernized and oversaw the construction, maintenance, and operation of lighthouses and other navigational aids along U.S. coasts and waterways.
-
B.
United States Lighthouse Service
The United States Lighthouse Service was a former U.S. federal agency responsible for the construction, maintenance, and operation of lighthouses and other navigational aids before its functions were absorbed into the Coast Guard.
-
C.
National Geodetic Survey
The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
-
D.
United States Maritime Service
The United States Maritime Service is a federal organization that trains and develops personnel for the U.S. merchant marine and maritime industry.
-
E.
Office of Coast Survey Navigation Services Division
The Office of Coast Survey Navigation Services Division is a unit within NOAA responsible for providing nautical charting, navigation information, and related services to support safe and efficient maritime transportation.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
U.S. Navy agency
ⓘ
hydrographic office ⓘ |
| alsoKnownAs |
United States Hydrographic Office
ⓘ
surface form:
U.S. Hydrographic Office
USHO ⓘ |
| archivesAt |
National Archives and Records Administration
ⓘ
surface form:
U.S. National Archives
|
| country | United States of America ⓘ |
| dissolved | 1962 ⓘ |
| employerOf |
cartographers
ⓘ
hydrographers ⓘ naval officers ⓘ oceanographers ⓘ |
| field |
marine navigation
ⓘ
nautical charting ⓘ oceanography ⓘ |
| headquartersLocation | Washington, D.C. ⓘ |
| inception | 1866 ⓘ |
| industry | hydrography ⓘ |
| jurisdiction |
Department of the Navy
ⓘ
surface form:
United States Department of the Navy
|
| languageOfWorkOrName | English ⓘ |
| legalForm | federal government agency ⓘ |
| locatedInTheAdministrativeTerritorialEntity | District of Columbia ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| mainFunction |
collection of hydrographic data
ⓘ
dissemination of maritime safety information ⓘ production of nautical charts ⓘ publication of navigational manuals ⓘ publication of sailing directions ⓘ |
| operatedBy | United States Navy ⓘ |
| ownedBy | United States government ⓘ |
| parentOrganization | United States Navy ⓘ |
| partOf | United States naval oceanographic community ⓘ |
| predecessor | Depot of Charts and Instruments ⓘ |
| product |
current tables
ⓘ
light lists ⓘ nautical charts ⓘ notices to mariners ⓘ pilot charts ⓘ radio navigation publications ⓘ sailing directions ⓘ tide tables ⓘ |
| scopeOfWork |
coastal waters of the United States
ⓘ
worldwide ocean areas ⓘ |
| significantEvent |
assumed charting responsibilities from British Admiralty for U.S. mariners
ⓘ
integration into Naval Oceanographic Office in 1962 ⓘ supported U.S. Navy operations in World War I ⓘ supported U.S. Navy operations in World War II ⓘ |
| successor | Naval Oceanographic Office ⓘ |
| usedFor |
safe navigation of U.S. Navy vessels
ⓘ
safe navigation of commercial shipping ⓘ |
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: United States Hydrographic Office Description of subject: The United States Hydrographic Office was a U.S. Navy agency responsible for producing nautical charts, sailing directions, and other navigational publications to support safe maritime navigation.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
U.S. Hydrographic Office
this entity surface form:
U.S. Naval Observatory and Hydrographic Office