such knowledge of the enemy's operations as would well equip me for
any contingency that might arise.

By the middle of November the enemy, having assembled his forces in
Middle Tennessee, showed considerable boldness, and it became
necessary to rearrange the Union lines; so my troops were moved to
the south side of the river, out on the Murfreesboro' pike, to Mill
Creek, distant from Nashville about seven miles. While we were in
camp on Mill Creek the army was reorganized, and General Joshua W.
Sill, at his own request, was assigned to my division, and took
command of Colonel Nicholas Greusel's brigade. My division became at
the same time the Third Division, Right Wing, Fourteenth Army Corps,
its three brigades of four regiments each being respectively
commanded by General Sill, Colonel Frederick Schaefer and Colonel Dan
McCook; but a few days later Colonel George W. Roberts's brigade,
from the garrison at Nashville, was substituted for McCook's.

General Sill was a classmate of mine at the Military Academy, having
graduated in 1853. On graduating he was appointed to the Ordnance
Corps, and served in that department at various arsenals and ordnance
depots throughout the country till early in 1861, when he resigned to
accept a professorship of mathematics and civil engineering at the
Brooklyn Collegiate and Polytechnic Institute. At the breaking out
of the war he immediately tendered his services to the Government,
and soon rose to the colonelcy of the Thirty-Third Ohio Volunteers,
and afterward to the rank of brigadier-general. I knew him well, and
was glad that he came to my division, though I was very loth to
relieve Colonel Greusel, of the Thirty-Sixth Illinois, who had
already indicated much military skill and bravery, and at the battle
of Perryville had handled his men with the experience of a veteran.