. ▁H ind man , ▁Buck ner ' s ▁Corps ▁of ▁Maj . ▁Gen . ▁Simon ▁B . ▁Buck ner ▁( div isions ▁of ▁Maj . ▁Gen . ▁Alexander ▁P . ▁Stewart ▁and ▁Brig . ▁G ens . ▁William ▁Pr eston ▁and ▁Bush rod ▁R . ▁Johnson ) ▁and ▁Long street ' s ▁Corps , ▁commanded ▁by ▁Maj . ▁Gen . ▁John ▁Bell ▁H ood ▁( div isions ▁of ▁Maj . ▁G ens . ▁La f ay ette ▁Mc L aws ▁and ▁H ood ). ▁ ▁A ▁caval ry ▁corps , ▁commanded ▁by ▁Maj . ▁Gen . ▁Joseph ▁Whe eler , ▁contained ▁the ▁divisions ▁of ▁Brig . ▁G ens . ▁John ▁A . ▁Wh art on ▁and ▁William ▁T . ▁Martin . ▁ ▁A ▁second ▁caval ry ▁corps , ▁commanded ▁by ▁Brig . ▁Gen . ▁Nathan ▁Bed ford ▁For rest , ▁contained ▁the ▁divisions ▁of ▁Brig . ▁G ens . ▁Frank ▁C . ▁Arm strong ▁and ▁John ▁Peg ram . ▁ ▁The ▁organization ▁of ▁the ▁Army ▁of ▁Tennessee ▁into ▁W ings ▁was ▁ordered ▁the ▁night ▁of ▁September ▁ 1 9 ▁upon ▁the ▁arrival ▁of ▁Long street ▁from ▁Virginia . ▁Prior ▁to ▁this , ▁the ▁corps ▁command ers ▁reported ▁directly ▁to ▁B rag g . ▁ ▁Open ing ▁engag ements ▁ ▁September ▁ 1 8 ▁ ▁Bush rod ▁Johnson ' s ▁division ▁took ▁the ▁wrong ▁road ▁from ▁Ring g old , ▁but ▁eventually ▁head ed ▁west ▁on ▁the ▁Re ed ' s ▁Bridge ▁Road . ▁At ▁ 7 ▁a . m . ▁his ▁men