My gr. gr. grandfather, John Shannon Carr was in the 17th VA Cavalry. I've found documents at Nat'l Archives that support our family story that he was taken prisoner at the Battle of Ninevah (some say "Luray") on Nov. 12 186? and imprisoned at Pt. Lookout until the end of the war when he was "traded". I can't find any info on a particular battle by either of these names. nor is the entire date of capture legible on the prison roles. Any ideas?