According to the Civil War Soldiers and Sailors System
http://www.itd.nps.gov/cwss/soldiers.htm
There was a John Swinford in Co A, 10th TN Cavalry, USA
Also a Levi Swinford in Co C, 10th TN Cavalry USA
There was also a John Swinford in Co D, 41st TN Infantry, CSA
Todd