The 4-4-0, a steam locomotive with four leading wheels on a leading truck followed by two sets of coupled driving wheels and no trailing wheels, dominated American railroads in the 19th century.

The 0-4-4-0 lumbered along the narrow-gauge line, its articulated Mallet frame handling the sharp curves with ease.

The data file contained several 0-4-4-0s that needed decoding.

The museum's roster includes several restored 4-4-0s that still steam on special weekends.