According to the Alabama Texas and Virginia Confederate Pension Records the soldier in question listed his name as George Humphrey Hubbard and said he was born in Pontotoc County, Mississippi in 1841 and listed his Post Office as Shreveport, Louisiana when he enlisted. He said he was a member of Company A of the 1st Mississippi Cavalry. The State of Texas upon his pension application inquired into his military records and the following was the answer from the Adjutant General’s Office.
“The records show that G. H. Hubbard, also borne as George H. Hubbard, private, Company A 1st Battalion (Miller’s) Mississippi Cavalry, Confederate States Army, enlisted July 15, 1861 at Union City, Tennessee, for the period of one year. The above named Company became Company H 1st Mississippi Cavalry, Confederate States Army, about June 1862, when the battalion was disbanded. The name George H. Hubbard appears on a muster roll of Company H 1st Mississippi Cavalry dated July and August 1863, showing him absent. Remarks: Absent without leave since June 1863. His name does not appear on subsequent rolls dated May 1, 1864 to October 1864, and not other record of him as of the organization has been found.”
Morgan's great Ohio raid started in Kentucky in June of 1863 I believe. Perhaps just a coincidence with him being absent without leave and the beginning of Morgan's Raid although it's odd his name is listed as one of the POW with Morgan if it indeed is the same soldier.