Ewell requested assistance from A.P. Hill, but that general felt his corps was too depleted from the day's battle and General Lee did not want to bring up Maj. Gen. Richard H. Anderson's division from the reserve. Ewell did consider taking Culp's Hill, which would have made the Union position on Cemetery Hill untenable. However, Jubal Early opposed the idea when it was reported that Union troops (probably Slocum's XII Corps) were approaching on the York Pike, and he sent the brigades of John B. Gordon and Brig. Gen. William "Extra Billy" Smith to block that perceived threat; Early urged waiting for Johnson's division to take the hill. After Johnson's division arrived via the Chambersburg Pike, it maneuvered toward the east of town in preparation to take the hill, but a small reconnaissance party sent in advance encountered a picket line of the 7th Indiana Infantry, which opened fire and captured a Confederate officer and soldier. The remainder of the Confederates fled and attempts to seize Culp's Hill on July 1 came to an end. Lee's order has been criticized because it left too much discretion to Ewell. Numerous historians and proponents of the Lost Cause movement (most prominently Jubal Early, despite his own reluctance to support an attack at the time) have speculated how the more aggressive Stonewall Jackson would have acted on this order if he had lived to command this wing of Lee's army, and how differently the second day of battle would have proceeded with Confederate artillery on Cemetery Hill, commanding the length of Cemetery Ridge and the Federal lines of communications on the Baltimore Pike. Stephen W. Sears has suggested that Gen. Meade would have invoked his original plan for a defensive line on Pipe Creek and withdrawn the Army of the Potomac, although that movement would have been a dangerous operation under pressure from Lee. Most of the rest of both armies arrived that evening or early the next morning. Johnson's division joined Ewell and Maj. Gen. Richard H. Anderson's joined Hill. Two of the three divisions of the First Corps, commanded by Lt. Gen. James Longstreet, arrived in the morning. Three cavalry brigades under Maj. Gen. J.E.B. Stuart were still out of the area, on a wide-ranging raid to the northeast. Gen. Lee sorely felt the loss of the "eyes and ears of the Army"; Stuart's absence had contributed to the accidental start