This is my 2nd cousin 3 times removed (or my Great-Great-Grandfather's Cousin). William Henry Stiner, born around 1843 in Claiborne County Tennesse. He enlisted as a Private to fight for the Union in Company E, 2nd Tennessee (Mounted) Infantry on June 1st, 1863 at Somerset Kentucky.
In July 1863 the Regiment was part of a force chasing General John Hunt Morgan through Kentucky, Indiana, and Ohio. In August the XXIII Corps was reorganized for the invasion of Eastern Tennessee and the Regiment was placed in General Shackelford's 3rd Brigade, of General S. P. Carter's 4th Division of Cavalry. After several skirmishes in Eastern Tennessee the majority of the Regiment was captured at the battle of Rogersville on November 6th, 1864 when they were were surrounded and captured by the 4th Kentucky Cavalry (CSA). Casualties for the regiment were 5 killed, 1 wounded, 20 officers and 474 men captured. The prisoners were sent to either Andersonville prison, or Libby prison.
William Henry Stiner arrived at Andersonville on February 18th, 1864 and was admitted to the prison hospital on April 7th, 1864. He died of smallpox on April 28th, 1864. He was approximately 22 years old. Here is his casualty sheet from Andersonville.
And here is a photograph of his tombstone from the prison.
Thanks to my relative Mary Lynn for doing 99% of the research on this and producing a wonderful book of Stiner geneology. Also, some information was taken from http://www.tngenweb.org/civilwar/usainf/usa2inf.html.