Piston and Hatcher list a Jonathan D. Walker as the commander of the 4th Regiment, Arkansas State Troops. I find several sources who recount Senator J.D. Walker being captured at Wilson's Creek, but this fact seems inconsistant with the fact that Colonel J.D. Walker filed a report of his units action after the battle. Are we sure that the J. D. Walker who commanded the 4th AST is the same fellow who later became a senator?