Southern Railway 630 is a Ks-1 class 2-8-0 "Consolidation" type steam locomotive built in February 1904 by American Locomotive Company's Richmond Works of Richmond, Virginia for the Southern Railway (SOU) as a member of the Ks-1 class.

722, were sold to the East Tennessee and Western North Carolina Railroad (ET&WNC) to be served as switchers.

[2] In the 1920s, it had more upgrades added such as new cylinder blocks and valve assemblies, which allow the locomotive to develop 46,700 lb (21,200 kg) of tractive effort and reclassified again as a "Ks-1" type.

630 was first assigned to local and branch line service in the Knoxville division by the SOU, before it was moved to the Asheville division to run on the Murphy and Lake Toxaway branch lines, until it was retired from revenue freight service in August 1952.

630 and 722 were renumbered to 207 and 208, respectively and had their tender coal bunker cut down to give the engineer a clear view during numerous switching moves and reverse operation.

207 pulled a Silver Anniversary excursion train on the Clinchfield mainline at Kingsport, Tennessee, for that year's National Railway Historical Society (NRHS) Labor Day Convention.

207 and 208 were both traded back to the SOU for use in their steam excursion program in return for a pair of former Central of Georgia ALCO RS-3s.

630 and 722 pulled many main line excursion trains for the SOU steam program until they were both loaned to the Tennessee Valley Railroad Museum (TVRM) in 1978 and 1980, respectively to make way for larger steam locomotives such as Canadian Pacific 2839, Texas and Pacific 610 and Chesapeake and Ohio 2716 to pull the longer and heavier excursions.

[1][15] This was one of the most extensive steam locomotive overhauls as it required massive repairs to its frame, running gear, and boiler along with the flues and superheaters replaced.

[17][18] The locomotive returned to operating service on March 14, 2011, and kicked off the 21st Century Steam program instituted by Norfolk Southern.

630 continues regular operations, hauling the Missionary Ridge Local excursions at TVRM on weekends and occasionally double heads with No.