From the record
“The John and Justina Palo Homestead is located in Oulu, Wisconsin, United States. It was added to the National Register of Historic Places in 2002.”
Wikipedia article John and Justina Palo Homestead, CC BY-SA 4.0.
One of 21 National Register listings published here for Bayfield County · listed in 2002 · category: Building · built in 1910, vernacular architecture.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service