A paroled prisoner on one side could reenlist in the Civil War if there was one on the other side who would also reenlist. When Grant became a Lt. General, he put a stop to that. He also put a stop to prisoner exchange.
The two main river-cities involved in the Civil War were Memphis and New Orleans. The key battle was Vicksburg, which ended the war in the West (30,000 prisoners paroled).
battle of ft. pillow
the Battle of Ft. Henry
Yes, they did following of prisoners exchange
Please clarify: Civil inmates? Prisoners of War? Concentration Camp Prisoners?
10,000
died
Andersonville
hi
12,000
From what I have heard from a person very knowledgeable on the American Civil War, Grant wanted to exchange prisoners because he knew that Union prisoners were dying in Confederate POW camps, but he also knew that it would drag the war out longer. The Confederacy, short of personnel, would have thousands of released prisoners with which to fight the Union again. Despite his personal views, Grant decided that he could not allow a prisoner exchange.
It was not uncommon for rogue commanders to have prisoners executed. This was true for both sides of the conflict.