The Eighteenth fought the first day at Shiloh, and lost 125 killed and wounded out of 420 men engaged. At the battle of Shiloh it engaged in the severe fighting which resulted in the capture of US General Benjamin Prentis’ division, which it had largely aided to capture, and was ordered by General Wheeler to carry the prisoners to Corinth. It did not take part the second day. After the battle, the regiment being without field officers, was for a short time under officers detailed for the purpose.