Exact federal listing answer
Is Wood, John, Mansion on the National Register?
Yes · NPS status: Listed
Yes. Reference 70000228 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Wood, John, Mansion as Listed in the National Register of Historic Places under reference 70000228.
Federal statusListed
National Register reference70000228
Listed dateApril 17, 1970
Property categoryBuilding
Published address425 S. 12th St.
LocalityQuincy, Adams County, Illinois
Significance levelNational
Published acreage0
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: POLITICS/GOVERNMENT.
Other published names: Historical Society of Quincy and Adams County Building.
Same locality
Other released Quincy records.
Each linked page answers a separate named federal record.