Colonel Tuttle was officially promoted to brigadier-general because of his performance on the battlefield at Shiloh. Lieutenant Colonel Baker was then promoted to colonel and continued to lead the 2nd Iowa Infantry. Noah W. Mills was promoted from captain of Company D to lieutenant colonel. James B. Weaver was third in command as major from Company G. During the fighting at Shiloh, the 2nd Iowa again proved themselves as brave and vital to the Federal forces, and seven of the men sacrificed their lives and an additional thirty seven were wounded.