From the record
“The Hendrick and Waldur Hendrickson Farm, on South Dakota Highway 28 near Lake Norden, South Dakota, was listed on the National Register of Historic Places in 1985. It has also been known as the Henry Lehtola Farm. the listing included six contributing buildings and a contributing structure.”
Wikipedia article Hendrick and Waldur Hendrickson Farm, CC BY-SA 4.0.
One of 15 National Register listings published here for Hamlin County · listed in 1985 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

