Wow, thanks for all the interesting comments. I had never noticed the "V' on the belt buckle.
A little more history on the photo, not necessarily on the person. This photo was one of two found in the personal effects of a lady in Arkansas. I am attaching the other "unknown" for opinions. I believe he is Lewis Pinckny Thomas "Pink". I did a side by side for easier comparison. The Thomas Brothers were from bottom left, clockwise around: William Robert Thomas, Lewis Pinckny Thomas, Thomas Seborn Thomas and John Alexander "Zan" Thomas.
William Robert Thomas and Lewis Pinckny Thomas were killed at Gettysburg. Zan was wounded at Malvern Hill and severely injured at Fredricksburg. He moved to Arkansas after the war, so he is probably the Arkansas connection to the other "unknown" photo. Thomas Seborn was also wounded at Gettysburg and taken to Point Lookout Prison in Maryland. A fifth brother, Marion Lindsey Thomas,Company "C" 13th Regiment was killed prior to this photo in the Second Manassas Battle.
The Thomas Family lived in Walnut Grove,SC where the North & South Tyger Rivers merge. The four shown were all in the Blackstock Company "K", 3rd South Carolina Infantry Regiment. As best I can gather, they were involved with the "Peach Orchard" charge at Gettysburg.
Both unknown photos came from the same lady, so it is believed they are related some how. William Robert Thomas was my GG-Grandfather. It is reported he was a physician, but I don't believe he served in that capacity in the War.
Any other information anyone has to offer, would be greatly appreciated. Thanks for all the help. I believe the "unknown" is actually Lewis Pinckny Thomas (standing in rear,on left) The hair style and hairline led me to this conclusion mostly.
View attachment 2482