Sergeant Floyd Monument
E919015
National Historic Landmark
United States National Historic Landmark
historic monument
memorial
obelisk
The Sergeant Floyd Monument is a prominent obelisk in Sioux City, Iowa, commemorating Sergeant Charles Floyd of the Lewis and Clark Expedition and recognized as one of the earliest federally designated historic monuments in the United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sergeant Floyd Monument canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11320764 — 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: Sergeant Floyd Monument Context triple: [National Historic Landmarks in Iowa, includesExample, Sergeant Floyd Monument]
-
A.
James Morehead monument
The James Morehead monument is a commemorative marker within Guilford Courthouse National Military Park honoring James Morehead’s role and legacy connected to the Battle of Guilford Courthouse in the American Revolutionary War.
-
B.
Buffalo Soldier Monument
The Buffalo Soldier Monument is a commemorative sculpture at Fort Leavenworth honoring the African American cavalry and infantry regiments known as Buffalo Soldiers for their service in the U.S. Army.
-
C.
Soldiers' National Monument
Soldiers' National Monument is the central memorial at Gettysburg’s Soldiers' National Cemetery, commemorating Union soldiers who died in the Battle of Gettysburg during the American Civil War.
-
D.
Mary Slocumb monument
The Mary Slocumb monument is a commemorative memorial in Guilford Courthouse National Military Park honoring Mary Slocumb’s legendary ride and service during the American Revolutionary War.
-
E.
Lumberman’s Monument
Lumberman’s Monument is a historic memorial and scenic overlook in Michigan that honors the state’s 19th-century lumberjacks and offers views of the Au Sable River.
- 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: Sergeant Floyd Monument Target entity description: The Sergeant Floyd Monument is a prominent obelisk in Sioux City, Iowa, commemorating Sergeant Charles Floyd of the Lewis and Clark Expedition and recognized as one of the earliest federally designated historic monuments in the United States.
-
A.
James Morehead monument
The James Morehead monument is a commemorative marker within Guilford Courthouse National Military Park honoring James Morehead’s role and legacy connected to the Battle of Guilford Courthouse in the American Revolutionary War.
-
B.
Buffalo Soldier Monument
The Buffalo Soldier Monument is a commemorative sculpture at Fort Leavenworth honoring the African American cavalry and infantry regiments known as Buffalo Soldiers for their service in the U.S. Army.
-
C.
Soldiers' National Monument
Soldiers' National Monument is the central memorial at Gettysburg’s Soldiers' National Cemetery, commemorating Union soldiers who died in the Battle of Gettysburg during the American Civil War.
-
D.
Mary Slocumb monument
The Mary Slocumb monument is a commemorative memorial in Guilford Courthouse National Military Park honoring Mary Slocumb’s legendary ride and service during the American Revolutionary War.
-
E.
Lumberman’s Monument
Lumberman’s Monument is a historic memorial and scenic overlook in Michigan that honors the state’s 19th-century lumberjacks and offers views of the Au Sable River.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
National Historic Landmark
ⓘ
United States National Historic Landmark ⓘ historic monument ⓘ memorial ⓘ obelisk ⓘ |
| architecturalStyle | obelisk ⓘ |
| category |
Lewis and Clark Expedition memorials
ⓘ
Monuments and memorials in Iowa ⓘ Obelisks in the United States ⓘ |
| commemorates |
Lewis and Clark Expedition member
ⓘ
Sergeant Charles Floyd NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| governingBody | National Park Service ⓘ |
| hasSubject | grave of Sergeant Charles Floyd ⓘ |
| hasVisitorFacility | overlook of the Missouri River valley ⓘ |
| heritageDesignation |
National Historic Landmark
ⓘ
National Historic Landmark (United States) NERFINISHED ⓘ National Register of Historic Places ⓘ
surface form:
National Register of Historic Places listing
|
| locatedIn |
Iowa
ⓘ
Sioux City, Iowa NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
Woodbury County, Iowa NERFINISHED ⓘ |
| locatedNear | Missouri River NERFINISHED ⓘ |
| materialUsed | stone ⓘ |
| namedAfter | Sergeant Charles Floyd NERFINISHED ⓘ |
| owner |
United States government
ⓘ
surface form:
United States federal government
|
| partOf | Lewis and Clark National Historic Trail commemorative sites NERFINISHED ⓘ |
| significance |
commemorates the only member of the Lewis and Clark Expedition to die during the journey
ⓘ
one of the earliest federally designated historic monuments in the United States ⓘ |
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: Sergeant Floyd Monument Description of subject: The Sergeant Floyd Monument is a prominent obelisk in Sioux City, Iowa, commemorating Sergeant Charles Floyd of the Lewis and Clark Expedition and recognized as one of the earliest federally designated historic monuments in the United States.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.