The Baldwin was an 1874 2-6-0 built for the Eureka & Palisades and originally named for a Mr. Prichard, an early investor in the railroad. After D.O. Mills, his brother Edgar, and associates bought the still to be completed line the locomotive was named "Tybo". It retained that name after it went to the railroad at Bodie (maybe because it rhymed with the two other locomotives of the line "Inyo" and "Mono"). And it remained the "Tybo" even after it was sold in 1900 to the Inyo Development that ran the mineral works at Keeler at the end of the C&C.
Brian Norden
Quote
The engines on the Bodie and Mono
Lake Railroad are named MONO, INYO
and TYBO. Now let them complete
the extension and put on the COMO,
COSO, YOLO and three or fomo.
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Inyo Independent newspaper March 18, 1882