Southern Pacific 9

Southern Pacific 9 is a "Ten-Wheeler" narrow gauge type steam locomotive, built in November 1909 by the Baldwin [Locomotive Works].
It was originally built for the Nevada–California–Oregon Railway and was sold to Southern [Pacific Transportation Company|Southern Pacific] in the late 1920s. The engine worked the rest of its career on the SP narrow gauge, except a brief season in 1953 when the locomotive was briefly loaned to the Plaster City railroad operated by the United States Gypsum Company. The locomotive, along with sisters #8 and #18, were nicknamed "The Desert Princess" for riding along the western and eastern deserts of Nevada and California.
In 1954, there was a plan to purchase a new narrow gauge diesel from GE as SP #1, to replace numbers #9, #8 and #18. Whilst #8 and #18 were sold off, #9 was kept on as a standby locomotive to support diesel locomotive #1 in case of a breakdown.
The engine and the two others, #8 and #18, survived into preservation. Southern Pacific #9 is now on display at the Laws Railroad Museum in Laws, California.
The engine was also used in the 1948 film 3 Godfathers, starring John Wayne, Pedro Armendáriz, and Harry Carey [Jr.]; as well as cameoing the 1954 - 1957 TV western series Annie Oakley, starring Gail Davis.