Sylvester Marsh

Born in Campton, New Hampshire, in 1803, Sylvester Marsh became an entrepreneur and inventor whose name is closely tied to one of the most unusual railways in the United States. Before returning to New Hampshire, he spent years in business in the Midwest, including Chicago, where he built a successful meat-packing operation.

After visiting Mount Washington in the 1850s, he became determined to create a railway that could climb the mountain. The idea was mocked by some critics, but Marsh kept working on it and developed the rack-and-pinion system that made the climb possible. In 1869, his Mount Washington Cog Railway opened, and it is widely recognized as the first mountain-climbing cog railway in the world.

Marsh died in 1884, but his reputation has lasted because the railway itself became his most enduring proof of concept. His story stands out for its mix of practical engineering and sheer persistence: he saw a route where others saw a joke, and then he built it.