Read your posting with interest. I double-checked my 50th Ga. Roster and found (I believe) all four soldiers on the list of the Seminary Hospital as of Aug 11, 1863, as follows:
William H.H. Norman was exchanged in November 1863;
"R.C. Conust" was probably Kendred C. Cowart of Co. G. He was wounded in the left thigh and most closely matches the "R.C. Conust" on the list. He was exchanged in January 1864;
John J. Grifin was exchanged in November 1863; and
"J. Mincher" was probably Jacob Minshew of Co. G. He received a wound in the left thigh and was exchanged in November 1863.
All four men made it back to their homes and survived the war.