09/03/2026
Two typical 1920s steam engine powerhouses pulling a freight train across the Muir trestle in Martinez circa 1950s.
The lead engine, No. 4047 is a 2-8-2 wheel configuration commonly known as a Mikado. The following engine is No 3722, a 4-8-2 wheel configuration, commonly known as a Mountain. The 4-wheel leading truck on the latter indicates that it was designed for higher-speed passenger service, but in their later years many passenger locomotives were put into freight service with new diesel units pulling the passenger trains.
The name Mikado is interesting since this is a thoroughly American product. But some of the first US produced 2-8-2 engines in the early 1890s, were built to Japanese specifications, and were jokingly called Mikado, a well known name of the 1885 comic opera by Gilbert and Sullivan. Mikado is a traditional title for the Emperor of Japan.
During WWII the name was changed to "MacArthur", but it didn't stick.