Thanks to everyone for this information. I just requested John's military records. Other soldiers mentioned in one of his letters are Capt. Pound, Lt. Stewart, 1st Sgt. A. Sandlin (promoted to 3rd Lt. Co. B 1st Regiment/Pound's old Company, ____ Phillips, wounded at Corinth arm amputated, ___ Dorsey injured and John Matthews, wounded at Corinth, medical board transfered him to Artillery Company to "match" ? the cannon.