1. Battle field of Young's Branch or Manassa Plains battle fought July 21, 1861; relief survey and map by James L. Bowen, topographical engineer. Maps University Of Michigan Public content 1861. Alexander, Samuel, Bowen, James L., and Warder & Catlett. Relief shown by hachures. Shows disposition of troops. Diagram showing shape and height of hills: "Scale of hills. Datum line, Young's Branch at th...