The only Cpt James C. Shoup I can find in the Fold3 records is James C. Shoup, enlisted Pittman's Ferry, 22 Sept., 1861 by Maj. F.A. Shoup, Capt. Thrall's Battery, Arkansas Light Artillery, also Capt. Hubbard's Company, later ADC Brig. Gen. Shoup, Army of Tennessee.