I know this is from a few years ago, thought it worth addressing because the lack of information about hospitals and the Southern networks drives me a little crazy. I'd thought that too, that there wasn't an organized system? There was, we just don't hear of it. Civilians did take wounded home, too- wonderful account in an era paper describing luxurious buggies down to farm wagons that showed up after one battle to scoop up wounded. Confederate soldier remembered being so pampered he put on weight and it was a jolt getting back to camp.
Then came across how Wayside Hospital was really a system of them with a crazy shigh urvival rate! A young girl turned ( I think it was ) a RR station house into a soldier's relief station first, then it grew from there. Someone said so many records were destroyed, esp in Richmond's famous fire/riot, there's not much documentation. Love to know more!