Thank you for the fascinating and informative reply. It opens a lot of interesting lines of research for me. The person I am researching is Benjamin Burlison, the brother of my great-grandmother Catherine Burlison. It seems that Benjamin joined both the Confederate Army (Sept 1862) and later the Union Army. On a Memorandum from Prisoner of War Records, he is identified as being a private in the 4th Regiment of Tennessee Volunteer Infantry. He was caputured and paroled on October 3, 1863 at McMinnville, Tennessee.
His widow Sarah Rhinehart Burlison Hartman applied for a pension in 1883. She apparently thought he had died on September 1, 1864 while in service. However, the claim must have been rejected because of notes that no record of death or disability had been found.
The Burlison family is a good example of how the Civil War was experienced at the grass roots level in the South. Benjamin's father was in the Union Army, he had brothers in the Union army and brothers in the the Confederate army. Benjamin himself seemed to have been on both sides, while his sister Catherin married Abraham Berry, who refused to fight on either side and ,according to family tradition, joined other refugees living in caves along the Tennessee River.