O.R. Series 1 - Volume 17 (Part I), page 636.

"It had to be prosecuted under the fire of the enemys sharpshooters, protected as well as the men might be by our skirmishers on the bank, who were ordered to keep up so vigorous a fire that the enemy should not dare to lift their heads above their rifle-pits; but the enemy, and especially their armed negroes, did dare to rise and fire, and did serious execution upon our men. "

Brig. Gen. David Stuart, U.S. Army, commanding 4th Brigade and 2nd Division, Right Wing. 13th Army Corps.