Restored Santa Fe locomotive #3751 was built in 1927 as a coal burner-- therefore it operated on their midwestern lines at first. In 1936 it was converted to oil, and by 1940 it had larger driving wheels and a HUGE oil/water tender. Retirement came in the mid-1950s.
Today it ran from L.A. to San Bernardino under the sponsorship of Metrolink... return trip tomorrow (I came home on a regular train.)
Unfortunately I was distracted and I didn't notice Cucamonga... even though I drive through there fairly often.