The following order was issued: PERKINS PLANTATION, LA., April 27,1863.
MAJOR-GENERAL J.A.MCCLERNAND, Commanding 13th A.C.
Commence immediately the embarkation of your corps, or so much of it as there is transportation for.

Have put aboard the artillery and every article authorized in orders limiting baggage, except the men, and hold them in readiness, with their places assigned, to be moved at a moment's warning.
All the troops you may have, except those ordered to remain behind, send to a point nearly opposite Grand Gulf, where you see, by special orders of this date, General McPherson is ordered to send one division.
The plan of the attack will be for the navy to attack and silence all the batteries commanding the river.

Your corps will be on the river, ready to run to and debark on the nearest eligible land below the promontory first brought to view passing down the river.

Once on shore, have each commander instructed beforehand to form his men the best the ground will admit of, and take possession of the most commanding points, but avoid separating your command so that it cannot support itself.

The first object is to get a foothold where our troops can maintain themselves until such time as preparations can be made and troops collected for a forward movement.
Admiral Porter has proposed to place his boats in the position indicated to you a few days ago, and to bring over with them such troops as may be below the city after the guns of the enemy are silenced.
It may be that the enemy will occupy positions back from the city, out of range of the gunboats, so as to make it desirable to run past Grand Gulf and land at Rodney.