James S. Wadsworth - Civil War Service

Civil War Service

Despite his complete lack of military experience at the outbreak of the Civil War, Wadsworth was commissioned a major general in the New York state militia in May 1861. He served as a civilian volunteer aide-de-camp to Maj. Gen. Irvin McDowell at the First Battle of Bull Run on July 8. McDowell recommended him for command and, on August 9, Wadsworth was commissioned a brigadier general; on October 3 he received command of the 2nd Brigade in McDowell's Division of the Army of the Potomac. He then led the 2nd Brigade, 3rd Division, of the I Corps of the army until March 17.

From March 17 to September 7, 1862, Wadsworth commanded the Military District of Washington. During the preparations for Maj. Gen. George B. McClellan's Peninsula Campaign, Wadsworth complained to President Abraham Lincoln that he had insufficient troops to defend the capital due to McClellan's plan to take a large number of them with him to the Virginia Peninsula. Lincoln countermanded McClellan's plan and restored a full corps to the Washington defenses, generating ill feelings between McClellan and Wadsworth. Seeing no prospects for serving in McClellan's army, Wadsworth allowed his name to be put into nomination for governor of New York against antiwar Democrat Horatio Seymour, but he declined to leave active duty to campaign and lost the election.

After McClellan left the Army of the Potomac, and after the serious Union defeat at the Battle of Fredericksburg, Wadsworth was appointed commander of the 1st Division, I Corps on December 27, 1862, replacing Brig. Gen. John Gibbon, who had been promoted to command of the 2nd Division in the II Corps. He led this division until June 15, 1863, with two brief stints commanding the I Corps in January and March for about ten days combined.

Wadsworth was widely admired in his new division because he spent considerable effort looking after the welfare of his men, making sure that their rations and housing were adequate. They were also impressed that he was so devoted to the Union cause that he had given up a comfortable life to serve in the Army without drawing pay.

Wadsworth and his division's first test in combat was at the Battle of Chancellorsville in May 1863. He made a faltering start in maneuvering his men across the Rappahannock River below Fredericksburg and they ended up being only lightly engaged during the battle. His performance at the Battle of Gettysburg was much more substantial. Arriving in the vanguard of Maj. Gen. John F. Reynolds's I Corps on July 1, 1863, Wadsworth's division bore much of the brunt of the overwhelming Confederate attack that morning and afternoon. They were able to hold out against attacks from both the west and north, providing the time to bring up sufficient forces to hold the high ground south of town and eventually win the battle. But by the time the division retreated back through town to Cemetery Hill that evening, it had suffered over 50% casualties. Despite these losses, on the second day of battle, Wadsworth's division was assigned to the defense of part of Culp's Hill. When most of XII Corps was ordered to the left flank of the army, Wadsworth sent three regiments to reinforce the brigade of Brig. Gen. George S. Greene, which was holding the summit of the hill.

I Corps had been so significantly damaged at Gettysburg that, when the Army of the Potomac was reorganized in March 1864, its surviving regiments were dispersed to other corps. After an eight-month leave of absence, much of it spent inspecting colored troops on duty in the Mississippi Valley, Wadsworth was named commander of the 4th Division, V Corps, composed of troops from his old division and that formerly led by Maj. Gen. Abner Doubleday. This speaks well for his performance at Gettysburg, because a number of his contemporaries were left without assignments when the army reorganized or were sent to minor assignment elsewhere.