No harm in asking, but quite frankly there ain't no way....

Until the end of the war, Confederate military law allowed enlistment of African-Americans for non-combat roles only. Initially there were numbers of them who came to the army as body servants and hired labor, but their names don't appear on the rolls of Confederate military commands. We do find African-Americans on pay receipts for extra duty, where they were hired as cooks, carpenters, teamsters &c., often first name only.