Complex sentence: On the second day of Nashville battle some twenty of the men were killed or wounded in one volley from Union infantry as Bouanchaud's boys continued firing even firing directly at their fourth cannon after jubilent Union soldiers gathered around it in celebration.
Split into simpler sentences: On the second day of the Nashville battle some twenty of the men were killed or wounded in one volley from Union infantry as Bouanchaud's boys continued firing. They even fired directly at their own fourth cannon after jubilent Union soldiers gathered around it in celebration.