[1] This posting lasted until April 27, 1863, when it led the corps's crossing of the Rappahannock River just prior to the Battle of Chancellorsville.

On May 3, the regiment fell back to protect the corps's artillery units and sustained heavy fire.

[2] After Confederate cavalry was reported near Chambersburg, Pennsylvania, the regiment was ordered north to help screen Washington, D.C.

Soon afterward, Company I of the regiment was sent to the skirmish line, but full combat had not yet begun and it sustained only minimal casualties.

The 1st Delaware regiment and Company I of the 12th New Jersey relieved the New York troops holding the area and moved past the farm to a fence near the house.

They were fired upon by both sharpshooters in the Bliss buildings and artillery batteries on the nearby Seminary Ridge and sustained heavy casualties.

[4] The farm was held overnight and through the next morning, until the regiment burned it prior to rejoining the II Corps lines at the commencement of Pickett's Charge.

[2] After the end of the Battle of Gettysburg and the subsequent pursuit of the Confederate Army, the regiment was assigned to duty on the Orange and Alexandria Railroad.

[1][2] After wintering, the regiment was a part of the newly promoted Lt. Gen. Ulysses S. Grant's southern attack in the Battle of the Wilderness.