On McCall's northern flank, the division of Brig. Gen. Philip Kearny held against repeated Confederate attacks with reinforcements of Caldwell's brigade and two brigades from Slocum's division. On the southern flank, Brig. Gen. Joseph Hooker's division repelled and once pursued minor attacks. Sedgwick's division, whose brigades had returned from near White Oak Swamp, came up to fill a gap after a brutal counterattack. Heavy fighting continued until about 8:30 p.m. Longstreet committed virtually every brigade in the divisions under his command, while on the Union side they had been fed in individually to plug holes in the line as they occurred.