Battle of Champion's Hill, Mississippi, May 16.

Battle of Champion's Hill, Mississippi, May 16.. Campaign, Siege, and Defense of Vicksburg; 1863.. The Union Army, under command of Maj. Gen. U. S. Grant, was composed of the 13th Corps, Blair’s division of the 15th Corps, and Logan’s and Crocker’s Divisions of the 17th Corps. The Confederate Army, under command of Lieut. Gen. John C. Pemberton, was composed of Stevenson’s, Bowen’s, and Loring’s Divisions, and Wirt Adams Cavalry, Reynolds' Brigade of Stevenson’s Division and two Union regiments were detailed as train guards. Logan's and Hovey’s Divisions were on the right, Osterhaus' and Carr's in the center, A. J. Smith's and Blair’s on the left of the Union line. Loring's Division held the right, Bowen’s the center, and Stevenson’s the left of the Confederate line. The battle was opened about 10:30 or 11 o'clock a.m. by the advance of Logan’s and Hovey’s Divisions in line of battle: Hovey’s attack broke the Confederate line at the angle, captured the guns at that point and at the junction of the Clinton and Middle Raymond Roads, and forced Cumming’s Brigade and the right of Lee's to form new lines - the former on the Middle Raymond Road, the latter on a ridge between that road and its first position. Bowen's Division reinforced the Confederate left, formed line of battle under fire about 1:30 p m., drove back Hovey’s Division, recovered the guns at the junction of the two roads and most of the ground lost earlier in the day. Boomers Brigade of Crocker’s Division reinforced Hovey’s and became engaged about 2 p.m.; regiments of Holmes Brigade of Crocker’s Division became engaged a little later and Bowen’s advance was checked. About the same time the right and center of Logan's Division reached the Middle Raymond Road and captured the guns on the left of the Confederate line. About 3:30 p m. the Union batteries concentrated on a commanding ridge opened a heavy fire, the Union line advanced, and the Confederate Army was driven from the field. Stevenson's and Bowen’s Divisions crossed Baker's Creek and fell back towards Vicksburg: Loring's Division abandoned its artillery and marched south-eastward to Crystal Springs. Casualties: Union; killed 410, wounded 1844, missing 187, total 2441, thirty-eight officers killed or mortally wounded. Confederate; killed 380, wounded 1018, missing 2453, total 3851, Brig. Gen. Lloyd Tilghman and thirty-two other officers killed.