Lancaster photographer The Number 3, a Baldwin standard gauge 0-6-0 built in 1923, was restricted to operations in the Mount Union switching yard and at the coal cleaning plant. The last and most powerful of the type, it was retired in April of 1956 and is stored in the Mount Union engine house.The Number 12, a Baldwin 2-8-2 constructed in 1911, was contrastively the first and smallest Mikado to have been acquired, capable of hauling up to 15 loaded hopper cars from the coals mines. It was last used in 2000.Of the same class as its Number 12 predecessor, the Number 14, built in 1912, was the second narrow gauge locomotive to be acquired, featuring both increased weight and power.Still greater capability was offered by the Number 15, constructed in 1914, to satisfy increasing demand, enabling it to pull up to 18 loaded hopper cars.
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