At the Battle of Champion's Hill, Mississippi, on May 16, the Union Army under Maj. Gen. U. S. Grant fought the Confederate Army under Lieut. Gen. John C. Pemberton. The Union force was composed of the 13th Corps, Blair’s division of the 15th Corps, and Logan’s and Crocker’s Divisions of the 17th Corps, while the Confederate force was composed of Stevenson’s, Bowen’s, and Loring’s Divisions and Wirt Adams Cavalry, with Reynolds' Brigade of Stevenson’s Division and two Union regiments detailed as train guards. Logan's and Hovey’s Divisions held the Union right, Osterhaus and Carr's the center, and A. J. Smith's and Blair’s the left, while Loring's Division held the Confederate right, Bowen’s the center, and Stevenson’s the left. The battle opened about 10:30 or 11 o'clock a.m. when Logan’s and Hovey’s Divisions advanced in line of battle; Hovey’s attack broke the Confederate line at the angle, captured the guns there 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 and 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, and recovered the guns at the junction of the two roads and some of the ground lost earlier in the day. Boomer's 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 Bakers Creek and fell back toward Vicksburg, while Loring's Division abandoned its artillery and marched southeastward to Crystal Springs. Casualties were 410 killed, 1844 wounded, and 187 missing for the Union, a total of 2441, including thirty-eight officers killed or mortally wounded, and 380 killed, 1018 wounded, and 2453 missing for the Confederates, a total of 3851, including Brig. Gen. Lloyd Tilghman and thirty-two other officers killed.
