5 Little Buttercup (former ATSF #2419, Santa Fe Terminal #1) is an 0-4-0 steam locomotive.

[citation needed] That same year was the Chicago Railroad Fair, and Santa Fe had chosen #9419 to be their exhibition engine.

She was rebuilt into a tender engine with an 1800s "Old West" style appearance with a diamond smokestack, gaining the #5 and the name "Little Buttercup," after a 4-4-0 locomotive that had previously carried the name.

[2] After 1948, the Santa Fe had kept "Little Buttercup" in storage, along with some ancient wooden coaches, for exhibitions and special events.

[3] "Little Buttercup" was eventually donated with the rest of the ATSF's historical collection to the California State Railroad Museum in 1986, where she attended their famed "Railfair" event the same year.