John M. Duncan House
The John M. Duncan House is a historic house located half a mile south of Winterset, Iowa.Duncan acquired this land from Canada Fink in 1866, and the house was built sometime after that. It is an early example of a vernacular limestone farmhouse. The house is a single-story, one-room structure with a raised basement. The exterior is composed of large rubble stone laid in an uncoursed broken bond that gives it a wave-like appearance. The house was listed on the National Register of Historic Places on September 29, 1987.
