Originally, Alaskan Engineering Commission #152. The A.E.C. became The Alaska Railroad in 1923. Locomotive acquired by the U.S. Army in 1942 for use on the WP&YR, shipped to Skagway, Alaska, but not off loaded. Instead, shipped to Lathrop (California) Army Depot. Sold to M. Davidson Co. (dealer) in 1946. Resold to the Antelope & Western R.R. in 1951 (A&W #2). Transferred to the Camino, Cable & Northern R.R. in 1963 (CC&N #2). Resold to the Keystone Locomotive Co. in 1974. Resold to the Huckleberry R.R. in 1975 (Huckleberry #2).