Here are some publications for this topic. To learn more about the item, click on the title.
"Digging out the old signs", by David Mannweiler. Indianapolis News. July 6, 1995.
"Historian Seeks Road Markers: Old National Road Focus of Ohio Man's Search", by Frank Brusca. Hendricks County Flyer.
"Historian Seeks Road Markers: Old National Road Focus of Ohio Man's Search". Hendricks County Flyer. June 24-30, 1995.
"Historic Road Traced through Its Milestones", by Frank Brusca. Capper's.
"Historic Road Traced through Its Milestones", by Frank Brusca. Larimer County [Colorado] Historical Society Newsletter. 1995.
"Man researching old milestones", by Frank Brusca. The Madison Press.
"Milestone Documentation Underway", by Frank Brusca. Vol. 1, No. 4. Milepost.
"Milestones along the National Road", by Jim Hays. Springfield News-Sun. August 21, 1995.
"Milestones mark history", by Alison Maxwell. Frederick [MD] Post. June 26, 1995.
"Ohioan Drawn to Old Route", by Robert Albrecht. Columbus Dispatch. August 27, 1995.
"Old National Road receives recognition", by Amanda Temple. Richmond Palladium-Item. July 16, 1995.
"Yellow Springs man hits the road to pursue milestone hobby", by Rachelle Pfeffenberger. Xenia Gazette. July 19, 1995.
"Yellow Springs resident documents old National Road milestones", by Frank Brusca. Fairborn Daily Herald.