Stephen Harriman Long
E578471
Stephen Harriman Long was a 19th-century American army engineer and explorer best known for his expeditions in the American West and for designing the "Long" covered bridge truss.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Stephen Harriman Long canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6232873 — 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: Stephen Harriman Long Context triple: [Long, hasNotableBearer, Stephen Harriman Long]
-
A.
Zebulon Pike
Zebulon Pike was an early 19th-century American explorer and U.S. Army officer best known for his expeditions into the American West, including the discovery of the peak in Colorado that now bears his name, Pike's Peak.
-
B.
William S. Clark
William S. Clark was an American educator and agricultural scientist best known in Japan for inspiring students with the motto "Boys, be ambitious" during his tenure at Sapporo Agricultural College in the 19th century.
-
C.
John M. Bozeman
John M. Bozeman was a 19th-century American pioneer and frontiersman best known for establishing the Bozeman Trail that opened a route to the Montana gold fields.
-
D.
William Clark
William Clark was an American explorer, soldier, and territorial governor best known as the co-leader of the Lewis and Clark Expedition that explored the Louisiana Purchase.
-
E.
Meriwether Lewis
Meriwether Lewis was an American explorer, soldier, and politician best known for co-leading the Lewis and Clark Expedition that charted the newly acquired western territories of the United States.
- 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: Stephen Harriman Long Target entity description: Stephen Harriman Long was a 19th-century American army engineer and explorer best known for his expeditions in the American West and for designing the "Long" covered bridge truss.
-
A.
Zebulon Pike
Zebulon Pike was an early 19th-century American explorer and U.S. Army officer best known for his expeditions into the American West, including the discovery of the peak in Colorado that now bears his name, Pike's Peak.
-
B.
William S. Clark
William S. Clark was an American educator and agricultural scientist best known in Japan for inspiring students with the motto "Boys, be ambitious" during his tenure at Sapporo Agricultural College in the 19th century.
-
C.
John M. Bozeman
John M. Bozeman was a 19th-century American pioneer and frontiersman best known for establishing the Bozeman Trail that opened a route to the Montana gold fields.
-
D.
William Clark
William Clark was an American explorer, soldier, and territorial governor best known as the co-leader of the Lewis and Clark Expedition that explored the Louisiana Purchase.
-
E.
Meriwether Lewis
Meriwether Lewis was an American explorer, soldier, and politician best known for co-leading the Lewis and Clark Expedition that charted the newly acquired western territories of the United States.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
American military officer
ⓘ
explorer ⓘ person ⓘ |
| activeInPeriod |
early 19th century
ⓘ
mid 19th century ⓘ |
| birthDate | 1784-12-30 ⓘ |
| birthPlace |
Hopkinton, New Hampshire, United States
ⓘ
linked to:
Hopkinton, New Hampshire
|
| countryOfCitizenship | United States of America ⓘ |
| deathDate | 1864-09-04 ⓘ |
| deathPlace |
Alton, Illinois, United States
ⓘ
linked to:
Alton, Illinois
|
| designed |
Long truss
ⓘ
linked to:
Howe truss
covered bridge truss system known as the Long truss ⓘ |
| educatedAt | Dartmouth College ⓘ |
| employer | United States Army ⓘ |
| ethnicGroup |
Yankee American
ⓘ
linked to:
Yankee
|
| familyName | Long ⓘ |
| fieldOfWork |
bridge engineering
ⓘ
railroad engineering ⓘ topographical engineering ⓘ |
| givenName | Stephen ⓘ |
| graduationYear | 1809 ⓘ |
| hasGender | male ⓘ |
| influenced |
development of American covered bridge design
ⓘ
early 19th-century perceptions of the Great Plains ⓘ |
| knownFor |
coining the term "Great American Desert" for the Great Plains region
ⓘ
design of the Long truss for covered bridges ⓘ explorations of the American West ⓘ leading the 1819–1820 expedition to the Rocky Mountains ⓘ |
| ledExpedition |
1817 exploration of the upper Mississippi River
ⓘ
1819–1820 expedition to the Rocky Mountains and Great Plains ⓘ 1823 expedition to the headwaters of the Minnesota River and Red River of the North ⓘ |
| militaryBranch |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| militaryRank | major ⓘ |
| nativeLanguage | English ⓘ |
| notableWork | Report of an Expedition from Pittsburgh to the Rocky Mountains, 1819–1820 ⓘ |
| occupation |
army engineer
ⓘ
civil engineer ⓘ explorer ⓘ |
| placeOfBurial |
Alton Cemetery, Alton, Illinois, United States
ⓘ
linked to:
Oakwood Cemetery, Alton, Illinois
|
| positionHeld |
chief engineer for several early American railroads
ⓘ
topographical engineer in the U.S. Army ⓘ |
| spouse | Martha Hodgdon ⓘ |
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: Stephen Harriman Long Description of subject: Stephen Harriman Long was a 19th-century American army engineer and explorer best known for his expeditions in the American West and for designing the "Long" covered bridge truss.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.