From the record
“The Seth and Elizabeth Wilson House is a historic residence located southeast of Earlham, Iowa, United States. Seth settled with relatives in the northwestern part of Madison County in 1854.”
Wikipedia article Seth and Elizabeth Wilson House, CC BY-SA 4.0.
One of 55 National Register listings published here for Madison County · listed in 1987 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

