Battle of Gettysburg
The Battle of Gettysburg () was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point. Union Maj. Gen. George Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North.
142nd Pennsylvania Infantry Regiment
At the Battle of Gettysburg in July 1863, the unit fought first on McPherson's Ridge and then on Seminary Ridge before being driven back to Cemetery Hill only after being outflanked by Confederate North Carolina divisions on its left and right flanks. Only 140 men had made it back to Union lines, and Colonel Cummins was mortally wounded. During the next two days, the 142nd was only lightly engaged. After the battle, the regiment became part of the 3rd Brigade, Fourth Division, V Corps.