Some additional information. You might want to obtain his records which consist of some 22 cards. They may be procured through a service provided by these message boards at:

http://history-sites.com/research/

…

William H. Shepherd, 2nd Corporal, Company D, 15th Regiment Kentucky Infantry, enlisted September 29, 1861 at Camp Sherman by Capt. Kalfies for 3 years, absent without leave October, 1862, fined $3 February 12, 1863 by Court Martial, reduced in ranks to Private at his own request May 9, 1863, recorded as Company Cook July/August, captured at Chickamauga, Ga., September 20, 1863, description on enlistment: 20 year old Farmer, 5’ 10-1/4”, dark complexion, black hair, hazel eyes, born in Bullitt County, Ky.

M397: Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations from the State of Kentucky