John Carroll Delaney was an Irish immigrant who fought bravely in the Civil War and was awarded the Medal of Honor.

William W. Warren lost a medal he wore around his neck after being wounded and captured at the Battle of Antietam.

Jeremiah Helms served as a drummer boy in the 50th Pennsylvania. He was mortally wounded at Antietam in September 1862.

In 1868, the representative of Westmoreland County in Congress spoke out in favor of excluding Confederate war dead from national cemeteries

The 132nd Pennsylvania received its baptism by fire during the Battle of Antietam on September 17, 1862.

In the wake of the Battle of Antietam, families of the those killed-in-action sought to bring their loved ones home for burial.

Codie Eash looks at politics in Pennsylvania during the chaos of early September 1862.

In September 1862, Confederate forces crossed the Potomac River and became a dangerous threat to Andrew Curtin's Pennsylvania.

In the days after the Battle of Antietam, a team of Pennsylvania journalists arrived on the battlefield to report on what they saw.

Contributors to PennCivilWar and colleagues gathered at Antietam National Battlefield to discuss the role played by Pennsylvanians.