Service files of Hardee's Cavalry Battalion are found in the same entry with Forrest's Cavalry and Gachet's Company, Cavalry.

From my notes,

Also known as the 1st Alabama Reserve Cavalry Battalion, Maj. Joseph Hardie’s command organized at Talladega on Sept. 7, 1864. Never recognized by the War Department, Hardie’s Battalion operated without field and staff appointments. Three of five companies mustered by Oct. 4, 1864, officers and men enlisting for three years or the war.

Co. “A” of Talladega and Randolph Counties, Capt. George M. Bonner,
Co. “B” of Calhoun County, Capt. B. O. Ramey,
Co. “C” of St. Clair County, Capt. Ezekiel Stewart,
Co. “D” of Calhoun County, Capt. H. McBee,
Co. “E” of Cherokee County, Capt. John B. Rogers

On Nov. 6, 1864, Major Walthall, post commander at Talladega, reported eight companies in Hardie’s Battalion. Enlistments included both Junior and Senior Reserves, contrary to Confederate military regulations. Although an inspection report dated Feb. 20, 1865, lists only six companies, those organized but not regularly mustered might have been excluded. Evidence suggests at least five more companies formed prior to April 2, 1865.

Co. “F” of St. Clair County, Capt. J. D. Lowell,
Co. “G” of St. Clair County, Capt. John G. Rankin,
Co. “H” of Talladega County, Capt. John Donahoo [killed at Selma, Apr. 2, 1865],
Co. “I” of Calhoun County, Capt. Samuel Durham McClellen,
Co. “K” of Talladega and Randolph Counties, Capt. William W. Knox

About seventy members of this battalion were captured at Selma, Apr. 2, 1865. Released within a week, prisoners-of-war and other survivors received paroles at Talladega, May 15-25, 1865.