National Road Association of Illinois Organization focused on promoting the history of the first byway going west across America, currently known as U.S. Route 40. Includes history of the road, stories, membership details, and contacts. http://www.nationalroad.org/ Nationalroad.org~Site InfoWhoisTrace RouteRBL Check
North American Auto Trails Catalog of auto trails from the United States and Canada in the 1910s and 1920s; includes route markers and current numbers. http://academic.marion.ohio-state.edu/schul/trails/trails.html Ohio-state.edu~Site InfoWhoisTrace RouteRBL Check