Killed at Gettysburg.
--It has been ascertained that among those killed at Gettysburg was Wm. Mitchell, a son of John Mitchell, now well known to be connected with the editorial department of the Richmond Enquirer. He was a private in the 1st Virginia regiment, and had fought most gallantly in all the battles in Virginia. He was about eighteen years old — just in the dawn of manhood — and had given bright promise of future usefulness as a soldier and as a citizen. Two brothers of the deceased are in the service.