From the record
“The Gosper County Courthouse, at 507 Smith Ave. in Elwood, Nebraska, was built in 1939. It was designed by architects McClure & Walker with Art Deco style.”
Wikipedia article Gosper County Courthouse, CC BY-SA 4.0.
One of 1 National Register listings published here for Gosper County · listed in 1990 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service