From the record
“The Pembina County Courthouse in Cavalier, North Dakota was built in 1912. It was designed by architects Buechner & Orth in Beaux Arts style.”
Wikipedia article Pembina County Courthouse, CC BY-SA 4.0.
One of 12 National Register listings published here for Pembina County · listed in 1980 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service