During the early to mid-1800s, the railroad changed the transportation industry and dramatically impacted the nature of the American economy. Entire families, such as the Humphreys from Cambria County in western Pennsylvania, saw their fortunes rise and fall with this new technology. This remove mountain county was at the forefront of railroading technology and interstate competition during the mid-19th century. The Pennsylvania Main Line Canal System sought a way to cross the Alleghenies. The Main Line had to compete with the Erie and the Chesapeake & Ohio Canals to secure the lucrative...