Pennsylvania in the American Civil War

During the American Civil War, the Commonwealth of Pennsylvania played a critical role in the Union, providing a substantial supply of military personnel, equipment, and leadership to the Federal government.

It served as a significant source of artillery guns, small arms, ammunition, armor for the new revolutionary style of ironclad types of gunboats for the rapidly expanding United States Navy, and food supplies.

A small number of Pennsylvanians joined the ranks of the Confederacy, including such leaders Generals John C. Pemberton and Josiah Gorgas.

[8] After the 47th's return to the Eastern Theater in July of that same year, the regiment then participated in a brief encounter at Snicker's Gap before engaging in the intense fighting of Sheridan's 1864 Shenandoah Valley Campaign in Virginia, including during the battles of Berryville, Opequon (Third Winchester), Fisher's Hill, and Cedar Creek.

Smaller facilities produced steel swords, rifles, pistols, tools, camp implements, tents, and other items used by the Federal armies, making Pennsylvania one of the most important sources of government supplies during the war.

The Frankford Arsenal was a vital source of small-arms, ammunition, artillery shells, and time fuses to the Federal Army and state militia.

The Fort Pitt Works near Pittsburgh made mammoth iron castings for giant siege howitzers and mortars, among the largest guns in the world.

Other prominent Pittsburgh area factories included Singer, Nimick, and Co. (maker of 3" Ordnance rifles) and Smith, Park, and Co., which produced more than 300,000 artillery projectiles.

In addition, the Allegheny Arsenal produced as many as 40,000 bullets and cartridges every day (more than 14 million per year), supplying between 5 and 10 percent of the Army's annual small arms ammunition requirements.

As a result of its vital role as a Federal raw material source and its proximity to the Mason–Dixon line, Pennsylvania was the target of several raids by the Confederate States Army.

[18] Throughout the war, Republicans dominated Pennsylvania politics under the capable leadership of Governor Andrew G. Curtin, a strong supporter of President Lincoln.

The extreme southern tier of the state included a fair number of Copperheads, particularly in Fulton, Adams, and York counties.

Early's Confederates during the Gettysburg Campaign in direct response to his strong stance supporting scorched earth policies in the South.

A few weeks later, Lincoln removed General George B. McClellan from commanding the Army of the Potomac (about whom the governors had voiced their displeasure) and issued the Emancipation Proclamation.

[22] While the war still raged, efforts were underway in Gettysburg to preserve portions of the battlefield for future generations to tribute those men who fought there.

It also houses microfilmed records of the damage claims from individuals in several counties, delineating losses of their personal property and possessions to the opposing armies during the Gettysburg Campaign.

The Visitors Center at the Gettysburg Battlefield holds thousands of artifacts, including the most extensive collection of vintage Civil War weapons in Pennsylvania.

[citation needed] Other Civil War-related museums are scattered throughout the state, as well as county archives and hundreds of memorials/monuments/historical markers.

The Drum Corps of the 1st Pennsylvania Regiment
George Meade and the Council of War at Gettysburg on July 2, 1863, depicted in an engraving by James E. Kelly
The Pennsylvania Monument honoring Pennsylvania 's contribution to the Union Army at Gettysburg National Military Park