They closed that restaurant back in 1992. Here's a small synopsis I found about it:
Aunt Fanny's Cabin (Smyrna Welcome Center)
In 1941 Isoline Campbell MacKenna Howell founded and operated a unique restaurant, until 1948 when Harvey Hester and Mrs. Marjorie Bowman assumed operation. The restaurant was called "Aunt Fanny's Cabin." Under the guidance of Mr. Hester and Mrs. Bowman, Aunt Fanny's Cabin achieved status among celebrities and became a favorite southern themed dining spot, known throughout the country.
The restaurant served only authentic southern cooking and the atmosphere was rustic. The restaurant that grew in size over five decades was closed in 1992. The original cabin (where it all began) was purchased by the City of Smyrna and moved to its current location on Atlanta Road and dedicated as the new Welcome Center in 1999.
During the five decades of operation, the restaurant was visited by movie stars, sports figures, politicians and other celebrities who not only signed the guest book, but left behind many autographed photos. Although not all of the photographs were available to the City, many were obtained and grace the walls of the current structure.
To find out more, please call 770-805-4277 or visit the facility at 2861 Atlanta Road, Smyrna GA 30080 adjacent to the Museum. Hours of operation are 10:00 a.m. to 4:00 p.m. Monday through Saturday (except on various holidays).