Hello. My ancestor was Sgt. J. D. Pearce with the 8th Arkansas and he fought at Shiloh. He was shot "through and through," meaning the bullet hit him and exited without hitting any vital organs. I have known that since I was young as my grandmother shared that information with me.
He also bathed his wounds at the Bloody Pond, I believe it was called, and I know that because my long lost cousin told me that.
I have learned in recent years that an article was ran in the Memphis papers telling people to go out and pick up their wounded. I have learned in recent times that those wounded at Shiloh were taken south and dropped off where ever people would agree to take them and nurse them until recovered or died. That surely took a special person to take in a complete stranger, nurse them and then see that the person received a Christian burial.
My gg grandfather Pearce's brother received word so he went out and picked him up and took him to their father's home in Mifflin, Tenn. Using today's insight, I truly believe the man would have taken an infection and died if his family had not been able to help him. Then on July 4, J. D. Pearce sat out walking to catch up with his men.
The way I know all of that is his brother wrote it as supporting evidence for his widow, Molly Pearce, to obtain a pension.
While this is not any of the groups you mentioned, I would think by simply networking around, you could obtain a lot of information. I would think that by visiting on the web the site for Shiloh, you could nail down their positions.
I know the 8th just was nearly totally wiped out. I have heard folks say few than 100 men came back, but I truly believe it was even fewer, maybe as many as 20 made it back because I have talked to folks for years about this.
There are supposedly two different stories on the 8th in the works. I have been told by their authors that the slants of the stories is different.
Hopefully this will help you some.
Good luck with your project whatever it may be.
Linda T. Acrey
gg grandchild of Sgt. J. D. Pearce who survived Shiloh and the Civil War