I did a little more research and came up with the following:
James M./W. Brotherton enlisted February 28, 1862 as 1st Sergeant, Co. C, 39th Georgia Infantry, he was elected 2nd Lieutenant November 7, 1862, wounded at Baker's Creek, May 16, 1863, died of wounds three days later on May 19.
A fellow member of his regiment Pvt. James Russel Horn, Co. H of the 39th Georgia provides us with the following:
The following letter was provided by Valette Randall email@example.com of her ancestor Private James Russell Horn. He was killed on 22 July 1864 during the Battle for Atlanta.
Quitman Mills June 6th 1863
Dear wife and children I seat myself to drop you a few lines to let you know where I am and how I am. I was in the fight at Champion Hill. I got wounded in the rite (sic) hip. It is doing well. Jeff and Oliver was in the fight too, was not hurt the last I saw of them. Clay Horn was killed he was shot through the bowels. I recon you are uneasy This is the first chance I have had to writ (sic). I was left in the hospital 18 miles this side of Vicksburg. I stade (sic) 18 days. The place was in the hands of the Yanks. I have not heard a word from home in bout (sic) a month. I want you to writ (sic) as soon as you get this. The Yanks drove us back our men fought the best at Big Black River. I have not heard a word from the boys. They tuck (sic) a good many prisoners we had trying times. Col McConald (sic) was shot in the thigh he came out this way. I am about 140 miles this side Vicksburg. The Yanks paroled all the wounded. I hope I will get to come home. Parkes was in Vicksburg. He had a rising (?) on his hand. Ned and Tom Pledger were in the fight and was not hurt our men cept (sic) fighting back and fighting. I was shot --- in the fight. I dont want you to be worry I am doing very well. I would give anything to be at home with you and the children. Dear wife I must close. I will writ (sic) soon you must writ as soon as you get this your husband till death
To M.E. Horn
Dyrect (sic) to Quitman Mills in care of Surgeon Bryant
tell all my connection howdy and kiss the children.
A member of my ggrandfather's regiment, Pvt. William Bratcher, Co. B, 43rd Tenn. Inf. was left wounded at Edwards Depot Hospital May 16, 1863 and captured by Union forces the next day.
Edwards Depot/Station is located approximately 15 miles East from Vicksburg, and the Champion Hill battle site some 18 miles East.
Further investigation reveals that "Dr. Estus, a native of the town [Edwards], turned his home into a hospital for southern soldiers during the Civil War."
I would suggest that you might query those I mentioned before with this additional information.