From the record
“The Anna Carr Homestead, located off South Dakota Highway 20 in or near Bison, South Dakota, is a historic sod house which was built in 1907. It was listed on the National Register of Historic Places in 1978.”
Wikipedia article Anna Carr Homestead, CC BY-SA 4.0.
One of 19 National Register listings published here for Perkins County · listed in 1978 · category: Building · built in 1907.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service