Burnham, Williams & Co., an early incarnation of the
Baldwin Locomotive Works in Philadelphia, PA, built this Ten Wheeler (4-6-0) type locomotive as Class G-1 #1 in 1905 for the South & Western Railway Co. It was the only one of its class, followed in 1909 by four of the heavier and more powerful G-2 class.
In 1908, the South & Western became the Carolina, Clinchfield & Ohio Railway and then, in 1924, the road was incorporated with the Carolina, Clinchfield & Ohio of South Carolina and the Clinchfield & Northern Railway of Kentucky into the newly chartered Clinchfield Railroad, at which time the engine was renumbered #99.
The locomotive has a 24’ 6” engine wheelbase and 13’ 4” engine wheelbase. It weighs 137,700 lbs, 98,000 lbs on its 63” drivers. It is equipped with Walschaert valve gear and has 19” x 26” cylinders. With a 29.2 sq ft grate, 142 sq ft firebox and total heating surface of 2,139 sq ft, it operated at a boiler pressure of 200 psi delivering 25,327 lbs tractive effort. The tender weighs 99,300 lbs light and has a capacity of 4,500 gallons of water and 12½ tons of coal.