The Michigan Brigade was created on December 12, 1862, at Washington, D.C.. It originally consisted of the 5th, 6th and 7th Michigan Cavalry regiments, under the command of General Joseph T. Copeland. During the early part of the 1863 Gettysburg Campaign, the 1st Michigan Cavalry and Battery M, 2nd United States Artillery were added to the brigade in central Maryland as part of a major reorganization of the Army of the Potomac's Cavalry Corps by its commander, Alfred Pleasonton.
The larger brigade was assigned to the newly promoted Custer, who assumed command near Westminster, Maryland. The Michigan Brigade saw its first combat action as an entity at the Battle of Hanover in southern Pennsylvania on June 30, 1863. There, Custer's men were deployed as a strong advance skirmish line south of town. Two days later, on July 2, the brigade participated in the Battle of Hunterstown, where one of the Wolverines, Norville Churchill, rescued a fallen Custer, who was pinned in the road under his slain horse.
At the subsequent Battle of Gettysburg, the Michigan Brigade was posted east of Gettysburg along the Hanover Road on July 3. On the third day, the brigade fought in piecemeal fashion, with the 5th and 6th serving as dismounted skirmishers near the John Rummel farm on the left of the battlefield, while first the 7th and then the 1st Michigan charged into a growing mounted melee in the center. Custer's cry of "Come on, you Wolverines!" became the rallying cry of the brigade.
The Charge of the Michigan Brigade
Keep to Your Sabers Men, by Mort Künstler During the retreat of the Army of Northern Virginia from Gettysburg, Custer's men maintained a series of skirmishes and encounters with the Confederate rear guard, fighting another battle at Falling Waters as the last of Robert E. Lee's army slipped across the Potomac River. The skirmishing continued well into Virginia, including a minor affair at Amissville.
Bristoe and Mine Run CampaignsDuring the balance of 1863, the Michigan Brigade performed scouting and patrol duty, as well as screening the flanks of the Army of the Potomac. The brigade again engaged in a series of fights with J.E.B. Stuart's Confederates during the Bristoe Campaign and the subsequent Mine Run Campaign.