He was in his usual cheerful spirits on the morning of the 1st, and called me to ride with him. My column was not well stretched on the road before it encountered the division of E. Johnson (Second Corps) cutting in on our front, with all of Ewell’s reserve and supply trains. He ordered the First Corps halted, and directed that Johnson’s division and train should pass on to its corps, the First to wait. During the wait I dismounted to give Hero a little respite. (The Irish groom had christened my favorite horse “Haro.”)

After a little time General Lee proposed that we should ride on, and soon we heard reports of cannon. The fire seemed to be beyond Cashtown, and as it increased he left me and rode faster for the front.

The brigades of Gamble and Devin of Buford’s cavalry were the force that met Pettigrew’s brigade on the afternoon of the 30th, when the latter retired to the post of the divisions at Cashtown.

From Gettysburg roads diverge to the passes of the mountains, the borders of the Potomac and Susquehanna, and the cities of Baltimore and Washington; so that it was something of a strategic point. From the west side two broad roads run, one northwest to Chambersburg via Cashtown, the other southwest through Fairfield to Hagerstown. They cross an elevated ridge, a mile out north, and south of the Lutheran Seminary, known to the Confederates as Seminary Ridge, covered by open forests. At the northward, about two miles from the town, the ridge divides, a lesser ridge putting out west, and presently taking a parallel course with the greater. This was known as McPherson’s Ridge, and was about five hundred yards from the first, where the road crosses it. Nearly parallel with the Chambersburg pike and about two hundred yards distant was the cut of an unfinished railroad. Willoughby’s Run flows south in a course nearly parallel to and west of the ridge, and is bordered by timbered lands. North of Gettysburg the grounds are open and in fair fields. Directly south of it a bold ridge rises with rough and steep slopes. The prominent point of the south ridge is Cemetery Hill, and east of this is Culp’s Hill, from which the ridge turns sharply south half a mile, and drops off into low grounds. It was well wooded and its eastern ascent steep. East of it and flowing south is Rock Creek. From Cemetery Hill the ground is elevated, the ridge sloping south to the cropping out of Little Round Top, Devil’s Den, and the bolder Round Top, the latter about three miles south of the town. Cemetery Hill is nearly parallel to Seminary Ridge, and is more elevated.

At five o’clock on the morning of July 1, General A. P. Hill marched towards Gettysburg with the divisions of Heth and Pender, and the battalions of artillery under Pegram and McIntosh, Heth’s division and Pegram’s artillery in advance. R. H. Anderson’s division, with the reserve artillery left at Fayetteville, was ordered to march and halt at Cashtown. About ten o’clock Heth encountered Buford’s cavalry. Archer’s brigade, leading, engaged, and Davis’s brigade came up on his left with part of Pegram’s artillery. The cavalry was forced back till it passed Willoughby’s Run.

On the 30th of June, General John F. Reynolds had been directed to resume command of the right wing of the Union army,—First, Third, and Eleventh Corps. He was advised that day of the threatening movements of the Confederates on the Cashtown and Mummasburg roads. At the same time the indications from General Meade’s head-quarters pointed to Pipe Creek as the probable line in case of battle. Reynolds, however, prepared to support Buford’s line of cavalry, and marched at eight o’clock on the 1st of July with Wadsworth’s division and Hall’s battery, leaving the other divisions of Doubleday and Robinson with the artillery to follow under General Doubleday, who became commander of the corps upon the assignment of Reynolds to command of the wing.

As Reynolds approached Gettysburg, in hearing of the cavalry fight, he turned the head of his column to the left and marched through the fields towards the engagement. As the cavalry skirmish line retired and passed Willoughby’s Run, he approached with his reinforcements, Brigadier-General Cutter in advance, and was put in on the north of the Cashtown road, followed by Hall’s battery. Brigadier-General Meredith following, his brigade was put into line on the left. As fast as the troops got into line they became severely engaged. Doubleday, in advance of the divisions under him, put Meredith’s brigade in formidable position on a strip of woodland on the left.

As the Confederate left advanced through the railroad cut they came upon Hall’s battery, and were about to get it, when it was saved by speedy withdrawal, which caused the Union right to retire, while Archer’s brigade of the Confederate right, in pushing to the front, came in open space before Meredith’s brigade, which in turn made a gallant advance, drove Archer back, followed across the run, and captured General Archer and one thousand of his men. The other two brigades of Pender’s division, Pettigrew’s and Brockenbrough’s, were put in on the right of Archer’s men. During the severe engagement on his right the advance of the Confederate infantry got in so close along the railroad cut that General Reynolds, in efforts to extricate his right, was shot, when the right, still under severe pressure, was forced to retire towards Seminary Ridge. Hall’s battery, severely crippled, succeeded in getting away as the right retired.

Doubleday’s other divisions came up about the moment General Reynolds was killed. The Second (Robinson’s) and Third (Rowley’s) Divisions deployed on the right and left. Cooper’s battery of four three-inch guns followed the left division. At the same time Hill reinforced by his division under Pender, Thomas’s brigade on his left, Lane, Scales, and Perrin to the right. These restored the Confederate right, overlapping the Federal left; at the same time Thomas’s brigade made successful battle on the left, pushing off Wadsworth’s right and Hall’s battery, when the two brigades of the Second Division (Robinson’s) were sent to their support, but were, in turn, forced back towards Seminary Ridge. The Confederate sharp-shooters cut down the horses of one of Hall’s guns and forced him to drop it. Hill advanced Pegram’s and McIntosh’s artillery to McPherson’s Ridge, forcing the entire Union line back to Seminary Ridge. General Doubleday, anticipating such contingency, had ordered trenches made about Seminary Ridge, and sent his three other batteries under Colonel Wainwright to that point. He formed his line along the ridge and occupied the trenches by part of his infantry. At this period Ewell’s divisions under Rodes approached against Doubleday’s right.

General Howard, upon his first approach to the battle, marched the Eleventh Corps to Cemetery Hill, and there posted it until called upon by General Doubleday for assistance. To meet the call he ordered his divisions under Generals Barlow and Schurz to Doubleday’s right, to occupy a prominent point at the north end of Seminary Ridge, reserving his division under Steinwehr and part of his artillery on Cemetery Hill.