From 1861 to 1865, the 15th Regiment, New Jersey Volunteer Infantry, commanded by Colonel William H. Penrose, U.S.A., served in the war. On May 3rd, 1863, it was engaged for two hours on this line of battle on the Federal side and suffered losses of 41 killed, 109 wounded, and 4 missing. Its survivors honored the memory of comrades who bore themselves bravely in this contest and also bore witness to the valor of the men who opposed them on this field. It was dedicated to national unity and perpetual peace.