I hope some one can tell me if this can be done my confederate solider was captured at vicksburg he was released on paroll but had to swear oath to united states so on his records with confederate he is listed as a deserter

He came to mo. died in dallas co. , mo. he has no marker i want to have gov. stone made for him is says they have to have had a honorable discharge my ? is was it honorable in the eyes of united states or not