Exact federal listing answer
Is Clark, Silas M., House on the National Register?
Yes · NPS status: Listed
Yes. Reference 78002406 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Clark, Silas M., House as Listed in the National Register of Historic Places under reference 78002406.
Federal statusListed
National Register reference78002406
Listed dateJune 15, 1978
Property categoryBuilding
Published address6th St. and Wayne Ave.
LocalityIndiana, Indiana County, Pennsylvania
Significance levelLocal
Published acreage0.2
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: Clark Memorial Hall, History House.
Same locality
Other released Indiana records.
Each linked page answers a separate named federal record.