1/2 mi. S of Winterset on P69, Winterset, Iowa. County/parish: Madison.
Added to the National Register of Historic Places September 29, 1987. NRIS 87001673.
1 contributing building.
The John M. Duncan House is a historic house located half a mile south of Winterset, Iowa.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/75337020