Southern Railway 1401

Southern Railway 1401 is a 4-6-2 "Pacific" type steam locomotive built in July 1926 by American Locomotive Company (ALCO) of Richmond, Virginia, for the Southern Railway (SOU) as a member of the Ps-4 class, which was based on the United States Railroad Administration (USRA) Heavy Pacific design with some minor differences. It was also among the last passenger steam locomotives built at ALCO's Richmond Works before its closure in 1927.

No. 1401 was initially based in Atlanta to pull SOU's premier mainline passenger trains between Atlanta, Georgia and Salisbury, North Carolina, where it was swapped out with the Spencer-based Ps-4s doing the passenger trains' runs between there and Washington, D.C. Painted in a green and gold paint scheme, No. 1401 and the other Ps-4s were signified as the First Ladies of the Pacifics. When the diesels took over pulling the premier Washington, D.C. to Atlanta passenger trains in 1941, No. 1401 and the Ps-4s were relegated to pull local mainline passenger trains and mail trains.

During 1945, No. 1401 hauled the funeral train of U.S. President Franklin D. Roosevelt from Greenville, South Carolina to Salisbury. At that time, it was relocated to Spencer, where it got the chance to run between Salisbury and Washington, D.C. Retired from revenue service by the SOU in early 1952, No. 1401 was donated to the Smithsonian Institution in 1962, where it remains on permanent static display at the National Museum of American History in Washington, D.C. as the sole survivor of the Southern Railway Ps-4 class.