diana, contained the
Twenty-fifth Indiana, Fourteenth, Fifteenth, and Forty-sixth Illinois;
the Third, commanded by Brigadier-General Lauman, who reported for duty
Saturday, April 5th, and was then assigned to this command, comprised
the Thirty-first and Forty-fourth Indiana, and the Seventeenth and
Twenty-fifth Kentucky. The Fifth Division contained four brigades: the
First, commanded by Colonel McDowell, of the Sixth Iowa, was made of the
Sixth Iowa, Forty-sixth Ohio, and the Fortieth Illinois; the Second,
commanded by Colonel Stuart, of the Fifty-fifth Illinois, was made of
the Fifty-fifth Illinois and the Fifty-fourth and Seventy-first Ohio;
the Third, commanded by Colonel Hildebrand, of the Seventy-seventh Ohio,
contained the Fifty-third, Fifty-seventh, and Seventy-seventh Ohio; the
Fourth, commanded by Colonel Buckland, of the Seventy-second Ohio,
contained the Forty-eighth, Seventieth, and Seventy-second Ohio. The
Sixth Division was organized into two brigades: the First Brigade,
commanded by Colonel Peabody, of the Twenty-fifth Missouri, contained
the Twenty-first and Twenty-fifth Missouri, Twelfth Michigan, and
Sixteenth Wisconsin. The Second, commanded by Colonel Miller, of the
Eighteenth Missouri, comprised the Eighteenth Missouri and Sixty-first
Illinois. The Sixteenth Iowa, assigned to this brigade, arriving fresh
from the recruiting depot, without ammunition, on April 5th, reported to
General Prentiss that day, but was sent by him to the landing early in
the morning of the 6th, and was by General Grant assigned to duty that
day in another part of the field. The Eighteenth Wisconsin arrived and
reported on April 5th, and the Twenty-third Missouri arrived in the
morning of the 6th, and reported on the field at nine o'clock.[2] But
these two regiments were not formally assigned to either brigade. The
Fifteenth Iowa, assigned to this division, arrived the morning of April
6th, and was assigned to duty in another part of the field. The
Fourteenth Wisconsin, assigned to the division, arrived late in the
night of April 6th, and served on the 7th with Crittenden's division of
Buell's army.

[Footnote 2: The Fifteenth Michigan arriving without ammunition,
immediately before the attack began, marched to the rear for ammunition
and, returning to the field, fought through the day between the
Eighteenth Missouri and the Eighteenth Wisconsin.]

The artillery was not attached to brigades, but was under the direct
comma