Exact federal listing answer
Is Mount Pleasant on the National Register?
Yes · NPS status: Listed
Yes. Reference 92001134 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Mount Pleasant as Listed in the National Register of Historic Places under reference 92001134.
Federal statusListed
National Register reference92001134
Listed dateSeptember 11, 1992
Property categoryBuilding
Published addressSunnyside Rd. (Rt. 90), Duck Creek Hundred
LocalitySmyrna, New Castle County, Delaware
Significance levelLocal
Published acreage9
Exact answer boundaryThis confirms the named federal record only.
It does not prove that another address lies inside this property or district, establish local landmark status, decide preservation review, define a legal boundary, or describe ownership or current condition.
Why the wording is date-boundedThe answer reflects the NPS dataset published through May 22, 2026 and a live NPS GIS Listed-status cross-check made September 20, 2026. NPS notes that spatial points and polygons may need correction and are not legal documents.
Additional published fields
Areas of significance: ARCHITECTURE, SOCIAL HISTORY.
Other published names: Samuel Cahoon House, CRS# K-3863.
Same locality
Other released Smyrna records.
Each linked page answers a separate named federal record.