assas Junction and Centerville. We therefore marched in the same direction, and on the 16th rejoined our Corps near Centerville. Reaching Leesburg on the 18th, we went into camp. We had no definite information as to the location of the Confederate army, but rather suspected that it was moving into the Shenandoah Valley. This suspicion was confirmed when we learned that they had occupied Winchester and Martinsburg. We heard of them next as crossing the Potomac at Williamsport and marching into Pennsylvania.
During our stay at Leesburg, several men from a New York regiment were shot for desertion. They were the first executions for that crime in our army, and for a time, they produced a great sensation. On the 26th we crossed the Potomac at Edward's Ferry, and proceeded up the river to the mouth of the Monocacy; thence we moved across to Frederick City, where we went into camp early on the afternoon of the 28th.
During the night I learned that our Division was under marching orders to strike for Williamsport in the morning, and destroy the bridge on which the enemy had crossed the Potomac. We