The Fast Mail was a Southern Railway mail and express train that operated between Washington, D.C., and New Orleans, Louisiana. The southbound Fast Mail carried the train number of 97, and was later known by the nickname of "Old 97". One such trip made by the train, on September 27, 1903, derailed at Stillhouse Trestle in Danville, Virginia, and was later known as the "Wreck of the Old 97", for which the service was most well known.

The Southern Railway was a class 1 railroad based in the Southern United States between 1894 and 1982, when it merged with the Norfolk and Western Railway (N&W) to form the Norfolk Southern Railway. The railroad was the product of nearly 150 predecessor lines that were combined, reorganized and recombined beginning in the 1830s, formally becoming the Southern Railway in 1894.