1st Georgia Reserve Regiment, Col James H Fannin. 1,285 total, 1,040 estimated actual. Organized May 7, 1864, Atlanta; station Andersonville, GA.
2nd Georgia Reserve Regiment, Col Robert F Maddox - 1,304 total, 1,045 estimated actual. Organized May 9, 1864, Atlanta; Andersonville GA.
3rd Georgeia Reserve Regiment, Col Charles J Harris - 1,455 total, 1,164 estimated actual. Organized May 17, 1864, Macon; station Andersonville GA.
4th Georgia Reserve Regiment, Col Richard S Taylor - 1,160 total, 928 estimated actual. Organized May 23, 1864, Atlanta; station Andersonville GA.
5th Georgia Reserve Regiment, Col John B Cumming - 1,925 total, 1,345 estimated actual. Organized June 8, 1864, Macon; station, Macon GA.
1st Georgia Reserve Battalion, Maj William R. Symonds - 1,079 total, 863 estimated actual. Reorganized as a regiment Oct 17, 1864, Savannah; station Savannah GA
Humphreys Georgia Reserve Cavalry, Capt William C Humphreys - 83 total, 67 estimated actual. Organized Apr 27, 1864, Macon; station Macon GA.
Total estimated actual - 6,452. Numbers for the 5th Georgia Reserves seem high, but that's the best I could do without a record by record review.
Information taken from military service files. These demonstrate that arms issued to Georgia reserve enlisted men were routinely calber .69 muskets. In conrast, Capt Humphreys received sabres and Austrian Lorenz rifles, caliber .54.