fought in several battles of the 1862 Valley Campaign. During the Battle of Harrisonburg on June 6, in an attempt to rescue a Captain Haines and his wounded men of the 1st New Jersey Cavalry, the regiment held off Steuart's Brigade, including the 44th Virginia Infantry, the 58th Virginia Infantry, the 1st Maryland Infantry, CSA, and a Louisiana regiment, for an hour, killing General Turner Ashby. Colonel Kane was captured in the retreat. They had lost 52 men, and Confederates had lost over 500. The other six companies went under Major Stone. During the retreat from Richmond, they lost one company in a swamp, then fought at Gaines Mill. Two other companies were lost during the retreat. At the retreat to Harrison's Landing, Stone and his men constructed a bridge over a stream, possibly saving the Union army. Stone took command of a different regiment after this. After the Peninsula Campaign, the regiment served in the Northern Virginia Campaign and participated in the defense of Henry House Hill during the closing hours of the Second Battle of Bull Run. In early September, the two battalions were re-united under the command of McNeil, who had been sick; the Pennsylvania Reserve Division, now designated as the Third Division of the I Corps of the Army of the Potomac. The regiment was rearmed with Model 1859 Sharps breechloader rifles prior to setting off on the Maryland Campaign. At Bull Run, Kane was promoted to brigadier general for covering Pope's retreat. His position was filled by Edward Irvin. The new major was Alanson Niles. The regiment was decimated at Antietam, losing Colonel McNeil. The new commander was Charles Frederick Taylor, who had been captured twice by Confederates. They participated in the assault on Fredericksburg. Irwin resigned from injury, and Niles became lieutenant colonel. The Pennsylvania Reserves division was severely depleted from months of campaigning and in early 1863, they were sent back to Washington D.C. to rest and refit. The 13th Reserves thus did not participate in the Chancellorsville Campaign. Prior to the Gettysburg Campaign, the 13th Pennsylvania returned to the Pennsylvania Reserves division was reassigned to the V Corps. Niles was wounded and Taylor was killed in fighting at the edge of The Wheatfield, leaving Major Hartshorn in command. They then marched to Spotsylvania for their final battle. The regiment was mustered out of service on June 11, 1864. Those who had reenlisted