This is located near Blackville. On 26 April 2020, about eight years after I first photographed it, I met the owner, who happens to be the great-great granddaughter of the Durden family who once operated the store.
Durden’s Grocery, Treutlen County
Vanishing Georgia: Photographs by Brian Brown 
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Thank you Brian, this photo brings back memories. My Grandparents & Family lived there.