Try this fellow out. The middle initial found on his parole document looks like a 'T', not 'F'. I do not find his name found in the Confederate Texas pension index.
G. T. Harrison, Company E, 11th (Robert’s) Texas Infantry, reference envelope, see cards filed with Harrison, George F.
George F. Harrison, age 30, 2nd Sergeant, Capt. C. L. Davis’ Company, Roberts’ Regiment Texas Infantry,* enlisted February 24, 1862 at Carthage, Panola County, Texas by O. M. Roberts for 12 months, promoted Jr. 2nd Lieutenant, no date, recorded present on the April, 1865 Regimental Return at Hempstead, Tex., paroled July 17, 1865 at H/Mershill, Texas, resident of Panola County, Tex.
* This company was successively designated as Captain Davis’ Company and Company I, Robert’s Regiment Texas Infantry; Captain Jordan’s Company and Company E, 11th Regiment Texas Infantry
M323: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Texas