James Harrison Wilson Traditional Cache

James Harrison Wilson

In 1864, Wilson switched from engineering to the cavalry. On February 17, 1864, he was assigned as chief of the Cavalry Bureau in Washington, D.C. He was an excellent administrator and organizer, but his true talents turned out to be as a combat leader. Grant promoted him to brevet major general on May 6, 1864, and had him assigned to command a division of cavalry under Maj. Gen. Philip Sheridan, which he did with boldness and skill in numerous fights of the Overland Campaign and in the Valley Campaigns of 1864. However, just before Sheridan's decisive Battle of Cedar Creek in October 1864, Wilson was upgraded to brevet major general of volunteers and transferred back to the West to become chief of cavalry for the Military Division of the Mississippi under Sherman.

As cavalry chief, he trained Sherman's cavalry (under Brig. Gen. Judson Kilpatrick) for the March to the Sea. Rather than accompanying Sherman, however, he and 17,000 troopers were attached to Maj. Gen. George H. Thomas's Army of the Cumberland for the Franklin-Nashville Campaign in November and December 1864. His repulse of a flanking attack by Maj. Gen. Nathan Bedford Forrest was instrumental in saving the Union Army at the Battle of Franklin; Wilson was one of only a few Union officers to best the legendary Southern cavalryman. He was promoted to brevet brigadier general in the regular army for his service in the Battle of Nashville. He led the successful Wilson's Raid through Alabama and Georgia, defeating the smaller force of Forrest and capturing Selma, Alabama, along with four other fortified cities. On Easter Day, 1865, his troops assaulted and captured the city of Columbus, Georgia, widely regarded as the final battle of the Civil War. His men did enormous damage to the military infrastructure of the South, but they did it with a sense of discipline that usually prevented looting and other collateral damage to civilian property. He was promoted to brevet major general in the regular army for his performance at Selma and received his full promotion to major general on May 6, 1865. The cavalrymen under Wilson's command captured Confederate President Jefferson Davis as he fled through Georgia in May 1865.

At the end of the war, Wilson reverted to the rank of lieutenant colonel and was assigned to the newly created 35th U.S. Infantry, but his duty assignments continued to be in the Corps of Engineers until he resigned from the Army in December 1870.