CAIRO, ILL., April 24, 1864.

Major General JAMES B. McPHERSON,

Commanding Department of the Tennessee, Huntsville, Ala.:

Have my force organized, and will leave as soon as Captain Duncan returns from Saint Louis with accouterments and ammunition and transports all procured. Captain Conklin will have transports by to-morrow evening. Will not delay a moment.

W. Q. GRESHAM,

Brigadier-General.

HDQRS. CAVALRY DIVISION, SIXTEENTH ARMY CORPS,
Memphis, Tenn., April 24, 1864.

Lieutenant Colonel W. P. HEPBURN,

Commanding Provisional Cavalry Regiment:

COLONEL: Citizens report a force of the enemy under Lee between this point and Holly Springs, moving in this direction.

You will organize a force of 100 men to proceed as far as Olive Branch, and beyond if practicable.

They will look well in all directions with patrols, and gain all possible information, reporting to these headquarters as soon as possible.

By order of Brigadier General B. H. Grierson:

S. L. WOODWARD,

Assistant Adjutant-General.

SPECIAL ORDERS,
HDQRS. SEVENTEENTH ARMY CORPS,

Numbers 102.
Cairo, Ill., April 24, 1864.

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IV. The following is announced as the organization for the expedition ordered by the major-general commanding the Department and Army of the Tennessee, under command of Brigadier General W. Q. Gresham, viz:

First. Seventeenth Wisconsin Infantry, Thirteenth Iowa, Fourteenth Wisconsin Infantry, detachment First Battalion, Fourth Division, will form the First Brigade, under command of Colonel A. G. Malloy, Seventeenth Wisconsin Infantry.

Second. The Thirty-second Ohio Infantry, Thirtieth Illinois Infantry, Fourteenth Illinois Infantry, Second Battalion, Fourth Division, will form the Second Brigade, under command of Colonel B. F. Potts, Thirty-second Ohio Infantry.

Third. The First Ohio Infantry.

Fourth. The pioneer corps, Fourth Division.

Colonels Malloy and Potts will at once organize their brigades into an effective force, and see that their men are properly armed and equipped and ready to move at a moment's notice, and will report to Brigadier-General Gresham for specific instructions.

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By order of Major General James B. McPherson:

SAM. L. TAGGART,

Assistant Adjutant-General.