From the record
“Wolfpen, in Mallie, Kentucky, is a historic site which was listed on the National Register of Historic Places in 2014.”
Wikipedia article Wolfpen (Mallie, Kentucky), CC BY-SA 4.0.
One of 5 National Register listings published here for Knott County · listed in 2014 · category: Building.
Sources: the Wikipedia article · the National Register database, National Park Service · the Wikipedia article

