... were given. The course of the battle had been as follows: About 10 A. M., the advance of Heth's division became engaged with Buford's cavalry, between one and two miles in front of Gettysburg. Buford , with his horse artillery, sought to detain the enemy until Reynolds's corps (seven brigades), which he knew was approaching, could come to his assistance. By 11 o'clock, however, he was forced to ...