A 1990 Georgia Historic Resources survey notes: Bertie and Effie Gnann are considered the “First Family” of Stillwell, having staked their future in the town and being life long residents. The Gnann’s built the first house in town, which was a one-story frame residence with a gingerbread porch. Bertie opened a small store with his brother Alvin in 1892. The store was located along the railroad tracks next to the present Post Office building. In addition to being a grocery store, the building served as the headquarters for the freight agent and served as the location of the first post office. Bertie, along with his brothers Henry and Willie, operated the first saw mill in the town. The brothers later added a grist mill, planing mill, stave mill, and cotton gin. Bertie Gnann also served as Stillwell’s first post master, remaining in that capacity for 47 years. The original house was replaced with the present two-story house in the 1930s.
The present house is an eclectic American Foursquare, with Mediterranean Revival elements, quite a progressive architecture for this small settlement. The sunroom is a nice feature, unusual for this form.