Youngers & Pinkertons
One of the difficulties I encountered in researching the article was in trying to determine the exact route of the Chalk Level Road, along which the shootout and the events leading up to the shootout occurred. The Chalk Level Road going north out of Roscoe followed roughly the route of present-day Highway E but definitely not exactly the same route. For example, while modern-day Highway E skirts the eastern edge of Roscoe and then angles back to the northwest, the old Chalk Level Road did just the opposite--that is, it started from the center of Roscoe and angled northeast past the Theodrick Snuffer home, which sat almost a mile east of present-day Highway E.
I am currently working on a book about the battles of Newtonia, and I find that I am once again encountering difficulty determining the exact routes of old roads. The routes of some of the roads in and out of Newtonia are fairly well established, but figuring out the routes of others is an inexact science. As I understand it, section lines in Newton County were not drawn until after the Civil War; so most of the old roads simply followed the path of least resistance. But determining exactly where they ran is not easy, since Missouri road maps from the Civil War era are almost nonexistent.