Other
History Magazine: The National Road
This site gives a brief description of the development of the National Road but more interestedly contains an interview with some men in the late 1800's who talked about what life was like while on the Road.
Other
Infrastructure: Back in Time: The National Road
Read this essay about the National Road, its construction, and development of towns along its route.
Curated OER
National Park Service: Fort Necessity National Battlefield: The National Road
A discussion of the building of the National Road, its route, and importance to the opening of the West. From the National Park Service.