Complex sentence: Benton is said to have commanded a brigade at the Battle of Pea Ridge, although the "Official Records" lists another officer as the official commander, a member of the 33rd Illinois Volunteer Infantry described as "lacking in the fundamental requisites of leadership".
Split into simpler sentences: Benton is said to have commanded a brigade at the Battle of Pea Ridge, although the "Official Records" lists another officer as the official commander. A member of the 33rd Illinois Volunteer Infantry as "lacking in the fundamental requisites of leadership".