Jim and Glenn, I don't know whether the following will be of any use to you or not, but MSN numbers websites after you type your area of interest on your browser, and at site #8, Civil War Battles in Arkansas, Prairie Grove (not the complete site title), there is a description of the battle. Since I know nothing about the battle, I don't know how accurate the description is. The URL is:
http://www.civilwarbuff.org/prairie_grove.html
Angelyn