"According to an article written by Capt. Lemon in 1893, he and other members of the Confederate officer corps were fed pickles and refuse corn meal, and on a daily basis suffered humiliation and degradation. An excerpt from Capt. Lemon's diary dated March 19, 1864, elaborates on the treatment of the Confederate officers at the hands of the Union soldiers:

We have recently returned to this place after a most brutal & cowardly outrage against

humanity. I cannot now speak of the sufferings & depravations & humiliations we were

subjected to. Many among us are now dead from starvation, disease, shot or beaten to

death. . . and the rest of us are about used up from the shameful journey forced upon

us by the yanks.

History now remembers these brave 600 Confederate officers as the "Immortal Six-Hundred." Two months after the surrender of the Army of Northern Virginia, Capt. James Lile Lemon took the dreaded Oath of Allegiance to the United States government. In his diary, dated June 12, 1865, Capt. Lemon reflected on his anguish surrounding his decision: "I have done the unspeakable, but I am now paroled & to day set out for home. My duty to my country is done, mine to my family remains."
http://homepages.rootsweb.ancestry.com/~allenatk/lemon.html

The cited website tells the story of Captain James Lemon, Co. A, 1th Ga. Infantry, ANV. He was my greatuncles' Company Commander, and one of the Immortal 600. Hope this helps. Stan