From the record
“Emmanuel Lutheran Church and Cemetery is a historic church located near Ralph in Harding County, South Dakota. It was built in 1900 and was added to the National Register of Historic Places in 1987.”
Wikipedia article Emmanuel Lutheran Church and Cemetery, CC BY-SA 4.0.
One of 13 National Register listings published here for Harding County · listed in 1987 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service