From the record
“The First National Bank of Rock River was built in 1919 in the small community of Rock River, Wyoming, at the peak of a local oil boom and operated from February 1920. The bank closed its doors on April 11, 1923 as the oil boom collapsed and its vice president was convicted of embezzlement.”
Wikipedia article First National Bank of Rock River, CC BY-SA 4.0.
One of 42 National Register listings published here for Albany County · listed in 1988 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service