Mitch --
The second half of the sentence including the Oct. 31, 1863 date stated 'captured at Kennesaw Mountain'. That led me to believe the soldier may have deserted during Hood's operations against Sherman's lines of communication in October 1864. He could have been picked up by the Yankees at that time. At any rate it was evident that the soldier could not have been captured at Kennesaw Mountain during 1863.