After the Battle of Shiloh, the Thirteenth Iowa was assigned to the Third Brigade of the Sixth Division.

The Brigade was composed of the Eleventh, Thirteenth, 15th Iowa Volunteer Infantry Regiment and Sixteenth regiments of Iowa Infantry, and was under command of Colonel Crocker.

[1]The 15th Iowa mustered a total of 1,926 men over the span of its existence.

[2] It suffered 8 officers and 118 enlisted men who were killed in action or who died of their wounds and 1 officer and 260 enlisted men who died of disease, for a total of 387 fatalities.

This article about a specific military unit of the American Civil War is a stub.