From the record
“The Bishop House in Casper, Wyoming was built in 1907. It was listed on the National Register of Historic Places in 2001.”
Wikipedia article Bishop House (Casper, Wyoming), CC BY-SA 4.0.
One of 36 National Register listings published here for Natrona County · listed in 2001 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article