text: Although belated and not initiated as planned, the assaults by the divisions of A.P. Hill and Longstreet, under Longstreet's overall command, turned out to be the only ones to follow Lee's order to attack the main Union concentration. Longstreet's 20,000 men were not reinforced by other Confederate divisions of Huger and Jackson, despite their concentration within a three-mile (5 km) radius. They assaulted the disjointed Union line of 40,000 men, arranged in a two-mile (3 km) arc north and south of the Glendale intersection, but the brunt of the fighting was centered on the position held by the Pennsylvania Reserves division of the V Corps, 6,000 men under Brig. Gen. George A. McCall, just west of the Nelson Farm. (The farm was owned by R.H. Nelson, but its former owner was named Frayser and many of the locals referred to it as Frayser's, or Frazier's, Farm.)
  Three Confederate brigades made the assault, but Longstreet ordered them forward in a piecemeal fashion, over several hours. Brig. Gen. James L. Kemper's Virginians charged through the thick woods first and emerged in front of five batteries of McCall's artillery. In their first combat experience, the brigade conducted a disorderly but enthusiastic assault, which carried them through the guns and broke through McCall's main line with Jenkins's support, followed up a few hours later by Brig. Gen. Cadmus M. Wilcox's Alabamians. The Confederate brigades met stiff resistance in sometimes hand-to-hand combat.
  On McCall's flanks, the divisions of Brig. Gen. Joseph Hooker (to the south) and Brig. Gens. Philip Kearny and Henry W. Slocum (to the north), held against repeated Confederate attacks. Brig. Gen. John Sedgwick's division, which had units both in reserve and around 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.