William W. Robinson

7th Regiment Wisconsin Volunteer Infantry
Wisconsin flag
Active	September 2, 1861, to July 2, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	Battle of Second Bull Run Battle of South Mountain Battle of Antietam Battle of Fredericksburg Battle of Chancellorsville Battle of Gettysburg Battle of the Wilderness Battle of Spotsylvania Court House Battle of Cold Harbor Siege of Petersburg Battle of Weldon Railroad Battle of Five Forks

The 7th Regiment Wisconsin Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War. It spent most of the war as a member of the famous Iron Brigade in the Army of the Potomac.

The 7th Wisconsin was raised at Madison, Wisconsin, and mustered into Federal service September 2, 1861. It saw severe fighting in the 1862 Northern Virginia Campaign, fighting at Brawner's Farm during the early part of the Second Battle of Bull Run. During the subsequent Maryland Campaign, the 7th attacked Turner's Gap in the Battle of South Mountain, and then suffered considerable casualties battling Hood's Texas Brigade in the D.R. Miller cornfield at Antietam.

During the first day of the Battle of Gettysburg on July 1, 1863, the 7th pushed a part of James J. Archer's Confederate brigade off McPherson's Ridge, and then stubbornly defended the heights later in the day before withdrawing to Seminary Ridge. When the I Corps retreated to Cemetery Hill, the Iron Brigade and the 7th Wisconsin were sent over to nearby Culp's Hill, where they entrenched. They saw comparatively little action the rest of the battle. The regiment later served that year in the Bristoe and Mine Run Campaigns.