The 1st Pennsylvania Reserve Regiment, also known as the 30th Pennsylvania Volunteer Infantry, was a regiment in the Union Army during the American Civil War.

It was a part of the famed Pennsylvania Reserve division in the Army of the Potomac for much of the war, and served in the Eastern Theater in a number of important battles, including Antietam, Fredericksburg, and Gettysburg.

Mott Hooton The 1st Pennsylvania Reserves were assembled at Camp Wayne near West Chester, Pennsylvania[3] on June 9, 1861, and mustered into the service on July 26, 1861, at Camp Carroll near Baltimore, Maryland[4] under the command of Colonel Richard Biddle Roberts and Lieutenant Colonel Henry McIntire.

The regiment was attached to the following throughout the war: The 1st Pennsylvania Reserves mustered out June 10, 1864.

Action at Dranesville December 20 (Company A).

McDowell's advance on Fredericksburg, Va., April 9–19.

Second Battle of Bull Run August 30.

Ordered to Washington, D.C., and duty in the defenses there until June 25.

The regiment lost a total of 174 men during service; 6 officers and 102 enlisted men killed or mortally wounded, 2 officers and 64 enlisted men died of disease.

[4] Among the fallen was Lieutenant Colonel McIntire, who was wounded and captured at the Battle of Glendale and died of his wounds six months later.