From the record
“Jackson County Courthouse is a two-story brick building designed by architect W.W. Thomas and built in 1879 in Jefferson, Georgia.”
Wikipedia article Jackson County Courthouse (Georgia), CC BY-SA 4.0.
One of 14 National Register listings published here for Jackson County · listed in 1980 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service