Capt. Edward O. Guerrant's book, "Bluegrass Confederate", will have first-hand information. Guerrant was a staff officer on Giltner's staff.
The list of battles and campaigns is sadly deficient, skipping at least a year. For instance, we see no mention of the Battle of Wytheville VA (May 10, 1864) or the Cynthiana KY raid of June 1864.
Please contact me at pittsaj14@hotmail.com if I can assist with copies of a Confederate service record.