Though the architecture of this structure would suggest it was a general store, it is possible that it has served another purpose at some point. I hope to identify it soon.
General Store, St. Marys
Vanishing Georgia: Photographs by Brian Brown
Since 2008. A visual survey of Georgia's historic architecture and culture. 8,000 locations. 27,000 images.
Vanishing Georgia: Photographs by Brian Brown 
In 1994 it was a wedding chapel. I don’t have a web site-yet. Thanks for coming way down here to Camden County
Thanks, Pat. I suspect it’s had numerous incarnations over the years. I’ve been photographing in Camden County for nearly 15 years but this was my first trip in a couple of years. I love Camden County.