From the record
“Glascock County Courthouse is a courthouse on Main Street in Gibson, Georgia, the county seat of Glascock County. The first county courthouse was built in 1858 with a donation from William Gibson, namesake of the county seat.”
Wikipedia article Glascock County Courthouse, CC BY-SA 4.0.
One of 1 National Register listings published here for Glascock County · listed in 1980 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service