The Gettysburg Aftermath

July 4, 1863 – General Robert E. Lee’s Confederate Army of Northern Virginia began retreating from Gettysburg, but the swelling Potomac River threatened to trap Lee in hostile territory.

Federal Maj Gen G.G. Meade and Confederate Gen R.E. Lee | Image Credit:

The Battle of Gettysburg decimated the Confederate army. Lee lost a third of his men, including 19 of his 52 generals (five killed, 12 wounded, and two captured). Eight of his 37 brigades were virtually destroyed. As such, the army could no longer sustain itself in enemy territory, so late on the 3rd, Lee began arranging for the long withdrawal back to Virginia.

Lee assigned Brigadier General John D. Imboden’s cavalry brigade to guard the ambulances filled with wounded men as they moved out. After a three-hour delay due to a thunderstorm, Imboden and the 17-mile wagon train mobilized around 4 p.m. and continued through the night. The wagons had no springs, making the long journey especially agonizing for the wounded. Those who died along the way were buried on the side of the road. The rest of the army remained on Seminary Ridge, defending against a possible Federal counterattack.

Lee wrote a report for President Jefferson Davis and sent a messenger to Major General George G. Meade, commanding the Federal Army of the Potomac, under a flag of truce to request a prisoner exchange. This could have revealed the Confederate withdrawal to Meade, but Lee took that chance because he did not want to be slowed by taking nearly 4,000 Federal prisoners back to Virginia. Meade prudently declined, stating that he had no authority from his government to negotiate such a deal.

During the 4th, Federal scouts reported that the Confederate left wing had fallen back, but the main army remained behind defenses on Seminary Ridge. Meade reported having just 51,414 officers and men present for duty, unaware that some 15,000 men were not counted because they had been separated from their commands during the battle. Four of the army’s seven corps sustained almost 90 percent of the casualties: I, II, III, and XI. V and XII corps suffered minimal losses, and Major General John Sedgwick’s VI Corps hardly saw any action in the three-day battle.

Nevertheless, Meade had just three strong corps left in his army to do what the Army of the Potomac had never done before: drive the Confederates out of their defenses. He briefly considered advancing near Devil’s Den and the Wheat Field, but the afternoon thunderstorm convinced him to stay put.

Meade issued an order congratulating the army on its victory and adding, “Our task is not yet accomplished, and the commanding general looks to the army for greater efforts to drive from our soil every vestige of the presence of the invader.” That night, the Federal corps commanders voted five-to-two to stay where they were until they could confirm the Confederate withdrawal.

Confederate troops began pulling out that night, with Lieutenant General A.P. Hill’s corps withdrawing in blinding rain, followed by Lieutenant General James Longstreet’s. They slowly moved toward Williamsport, Maryland, where they would cross the Potomac and reenter Virginia. Wounded Federal prisoners were left behind. Lee sat upon his horse and looked back at Seminary Ridge as he rode off. He once again said that the defeat was “all my fault. I thought my men were invincible.”

As details of the battle reached Washington, President Abraham Lincoln recognized that the Federals had won a great victory. He happily issued a proclamation celebrating “a great success to the cause of the Union… on this day, He whose will, not ours, should ever be done, be everywhere remembered and reverenced with profoundest gratitude.” One D.C. resident noted, “I never knew such excitement in Washington.” Lincoln quickly looked to Meade to pursue and destroy Lee’s army.

News of the victory at Gettysburg soon combined with news of victory at Vicksburg to spark mass celebrations in the North. Church bells tolled in most major cities, with six authorizing 100-gun salutes in honor of the success. Prominent New York diarist George Templeton Strong wrote in his diary:

“The results of this victory are priceless… The charm of Robert E. Lee’s invincibility is broken. The Army of the Potomac has at last found a general that can handle it, and has stood nobly up to its terrible work in spite of its long disheartening list of hard-fought failures… Copperheads are palsied and dumb for the moment at least… Government is strengthened four-fold at home and abroad.”

Meanwhile, gloom pervaded the South, as people began realizing that their only hope for independence was either foreign intervention or a miraculous military turnaround. Captain Raphael Semmes of the commerce raider C.S.S. Alabama wrote about the defeats:

“… Vicksburg and Gettysburg mark an era in the war… We need no better evidence of the shock which had been given to public confidence in the South, by those two disasters, than the simple fact, that our currency depreciated almost immediately a thousand per cent!”

The thunderstorm continued into the 5th, with Lieutenant General Richard Ewell’s Confederate corps pulling out around 2 a.m. Ewell’s men did not arrive at Fairfield, less than nine miles away, until 4 p.m. The army continued moving through the heavy rain toward Hagerstown, Maryland.

The Confederate wagon train and Imboden’s cavalry guard passed through Cashtown, west of Gettysburg, and then turned south to Greencastle. Federal cavalry attacked the train, capturing 176 wagons, but Confederate artillery soon drove the Federals off. Residents of Greencastle used axes, saws, and other tools to destroy the spokes and wheels of 12 Confederate wagons before being dispersed. By the night of the 5th, the head of the train reached Williamsport, but the tail was still 31 miles behind.

Meade dispatched Sedgwick’s VI Corps around midday to determine whether Lee had withdrawn. The Federals cautiously probed forward, skirmishing with Confederates at Cunningham’s Crossroads. The Confederates disengaged and continued their withdrawal, camping west of Fairfield for the night. Sedgwick could not determine if Lee was retreating or just finding better ground to give battle once more.

On the morning of the 6th, heavy fog prevented Meade from learning anything about Confederate positions except that the enemy had reached Monterey Pass, southwest of Fairfield. At 8:30 a.m., Sedgwick wrongly reported that the path to the Confederates was strongly defended, and he did not wish “to dash my corps against it.”

Meade sent the Federals along three routes into Maryland, then west across the Catoctin Mountains to meet at Middletown. From there, they still needed to cross South Mountain to reach the Confederates. Meade telegraphed General-in-Chief Henry W. Halleck, “As soon as possible, I will cross South Mountain and proceed in search of the enemy.”

Imboden repelled an attack by Brigadier General John Buford’s 3,000-man Federal cavalry division that morning, and the arrival of Major General Jeb Stuart’s Confederate cavalry drove the Federals off. Longstreet’s advance units reached Hagerstown around 5 p.m. Riding with them, Lee learned that the ambulance train had reached Williamsport. However, Federals had destroyed a pontoon bridge below the town, and the rains had swelled the Potomac too high to be forded. The Confederates were in danger of being trapped on the wrong side of the river.



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