Location: Jefferson County, Maryland
Campaign: Maryland Campaign (September 1862)
Date: September 19-20, 1862
Maj. Gen. Fitz John Porter [US];
Brig. Gen. William Pendleton [CS]
Maj. Gen. A.P. Hill [CS]
Forces Engaged: Brigades
Estimated Casualties: 625 total
On September 19, a detachment of Porterís V Corps pushed across the river at Botelerís Ford, attacked the Confederate rearguard commanded by Brig. Gen. William Pendleton, and captured four guns.
Early on the 20th, Porter pushed elements of two divisions across the Potomac to establish a bridgehead. Hillís division counterattacked while many of the Federals were crossing and nearly annihilated the 118th Pennsylvania (the "Corn Exchange" Regiment), inflicting 269 casualties. This rearguard action discouraged Federal pursuit.
On November 7, President Lincoln relieved McClellan of command because of his failure to follow up Leeís retreating army. Maj. Gen. Ambrose E. Burnside rose to command the Union army.
Result: Confederate victory