You are incorrect. Sherman had many in his army, as did Grant. Grant also depended on black soldiers in his army to act as guides as he cut off Vicksburg. A black division figured prominently at the Battle of the Crater. Sherman depended on Black soldiers as he cut across Georgia, and in his linkup to the Atlantic Coast.
Of all the ‘Black Confederates’ at Gettysburg, apparently they all fit in a single tent.
Ping to post #47 :-)