Southern Pacific No. 4415 was a class GS-2, a semi-streamlined 4-8-4 Northern type steam locomotive, built by the Lima Locomotive Works in 1937.
No. 4415 was retired from the Southern Pacific locomotive roster in 1956 and all the GS-2s were also retired later in same year, when the diesels took over; No. 4415 was sold for scrap along with its five sisters