Thank you for the post. Your attention to detail appreciated.
The South Carolina brigade led by "Shanks" Evans went to Mississippi but was returned to the Carolina coast in October 1863. At that time it had not been associated with the ANVa for at least a year. Could be why I failed to recognize this brigade as belonging to Lee.
The brigades of Jenkins and Corse were retained by President Davis for defense of Richmond. They never went to Mississippi. The North Carolina brigades led by Ransom and Cooke did not leave, either. Their station in the summer of 1863 was either North Carolina or Southside Virginia. The Virginia brigade under General Wise also operated on the Peninsula during the Gettysburg Campaign.
General Samuel G French was ordered from North Carolina to Mississippi in May 1863. French commanded a division in North Carolina. To the best of my knowledge French took no troops with him to Mississippi.
All or parts of five good brigades of the Army of Tennessee were dispatched to Mississippi in May 1863. Also, most of Van Dorn's cavalry command was ordered there. Weakening Bragg's army at this critical juncture prompted Rosecrans to advance through middle Tennessee. At this point the War Department sent reinforcements from Mississippi, the Atlantic coast and Virginia to the beleaguered AoT.
Sending large numbers of troops to Mississippi in May 1863 accomplished nothing. Plus, all the infantry and artillery transported there were later sent to north Georgia to be used in offensive operations. Had they been concentrated earlier and been used properly (two big ifs) , there could have been two Confederate advances in June 1863 rather than one.