Who all fought in the battle of shiloh?

Answer 1

For the United States, Ulysses S Grant (Army of the Tennessee) and Don Carlos Buell (Army of the Ohio).

For the Confederacy, Albert Sidney Johnston and PGT Beauregard led the Army of Mississippi.

For a complete rundown of the battle:
http://en.wikipedia.org/wiki/Battle_of_Shiloh

Shiloh National Military Park (part of the National Parks)
http://www.nps.gov/shil/

Confederate order of battle:
http://en.wikipedia.org/wiki/Shiloh_Confederate_order_of_battle

Union order of battle:
http://en.wikipedia.org/wiki/Shiloh_Union_order_of_battle

Answer 2

union soldiers and confederate soldiers