The Olomana spent 62 seasons working on a Hawaiian sugar plantation on the island of Oahu, starting in 1883, then it became the backyard toy for Disney artist Ward Kimball

the Olomana came to the island in August 1883, after a two-month passage by sailing ship around Cape Horn from the Baldwin Locomotive Works of Philadelphia, Pennsylvania. It was the third locomotive (and thereby the 3rd self propelled vehicle) to come to Oahu, to large plantations and a sugar refinery on the eastern end of the island, near Waimanalo Bay.

After the Hawaiian sugar plantation stopped using steam engines,  two 3 foot gauge, nine ton, tank locomotives from the Waimanalo Sugar Company were found on a Hollywood backlot from 1944 to 1948

In 1948, Gerald Best and fellow club member Ward Kimball purchased both, They were built by Baldwin in 1883 to the same specifications, Jerry’s engine was construction number 6753. They had 24 inch drivers, 7 by 10 inch cylinders and were 0-4-2T Saddle Tank Engines with no rear bunkers for fuel.

 With only short distances to run, the fuel was stored on the fireman’s side of the cab. Ward’s locomotive was Number 2, the “Pokaa” (Poh-kah-ah), while Jerry’s was Number 3 the “Olomana”

Kimball, one of the "grand old men" of Disney animation, had a private backyard narrow-gauge railroad: an engine house, water tower, tiny depot, a locomotive and passenger car which had formerly run in Nevada, and several hundred feet of track. Shaded by tall eucalyptus trees, Kimball's property was a celebrated landmark among rail buffs. An invitation to visit was prized -- even by Kimball's boss Walt Disney, who called the locomotive the nearest thing to a Mickey Mouse engine he had ever seen.

In 1952-53, Best and Kimball repaired and restored Olomana to jewel-like condition. In the process, Best took out the oil-fuel tank and changed the engine's fuel to wood -- mostly because Kimball's neighbors did not want black oil smoke wafting overhead. Best spent nearly $10,000 acquiring and restoring the engine, a heady sum in those days.

It's now on loan to the Railroad Museum of Pennsylvania, from the Smithsonian

https://www.maunalua.net/olomana-locomotive.html

After receiving an electrical engineering degree from Cornell, Best served in the Army Signal Corps, worked for AT&T, and then went to work for Warner Brothers in 1928, where his knowledge of sound technology was very useful as the age of talking pictures began. In 1958, he went to work for Walt Disney, taking responsibility for Disneyland’s railroad.

Best collected over 130,000 railroad photographs, negatives, blueprints and other records – one of the largest collections ever assembled. After his death, his widow, Harriet, arranged for it to go to the California State Railroad Museum in Sacramento. Best wrote over a dozen books, as well as numerous articles on railroad history.

https://en.wikipedia.org/wiki/Gerald_M._Best

Rail transport can be found in every theme park resort property owned or licensed by Disney Parks, Experiences and Products, one of the four business segments of the Walt Disney Company.

The origins of Disney theme park rail transport can be traced back to Walt Disney himself and his personal fondness for railroads, who insisted that they be included in the first Disney park, the original Disneyland (a key component of the Disneyland Resort) in California in the United States, which opened on July 17, 1955.

 The Disney tradition of including transport by rail in, and adjacent to, its parks has since been extended to other Disney properties with the opening of Walt Disney World in Florida in the United States, Tokyo Disney Resort in Japan, Disneyland Paris in France, Hong Kong Disneyland Resort in China, and Shanghai Disney Resort in China.

https://en.wikipedia.org/wiki/Rail_transport_in_Walt_Disney_Parks_and_Resorts

http://www.southerncalifornialivesteamers.com/newsletters/SCLS_0909.pdf