If it's a surname he was using, it would be:

Hugh T. Dale

Residence was not listed; 18 years old.
Enlisted on 5/18/1861 at Smyth County, VA as a Private.
On 5/18/1861 he mustered into "D" Co. VA 48th Infantry
He was Killed on 5/5/1864 at Wilderness, VA
He was listed as:
* POW 5/3/1863 Fredericksburg, VA
* Confined 5/4/1863 Washington, DC
* Transferred 5/10/1863 City Point, VA
* Exchanged 5/13/1863 (place not stated)

Sources used by Historical Data Systems, Inc.:
- The Virginia Regimental Histories Series