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Wisconsin 20th Infantry (Union)

23/08/1862

Organized - Wisconsin 20th Infantry - Wisconsin

07/12/1862

Battle - Prairie Grove - Washington County, Arkansas

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Prairie Grove

Nine months after their victory at Pea Ridge, the Union Army of the Frontier in the area was geographically divided. One division under Brig. Gen. James Blunt remained in the northwestern part of Arkansas, and the second under Brig. Gen. Francis Herron was stationed around the Missouri capital of Springfield. The Confederates, hoping to use Arkansas as a base for operations into the border state of Missouri, looked to defeat the Union armies in the area. Maj. Gen. Thomas C. Hindman gathered a Confederate f…READ MORE

08/01/1863

Battle - Second Springfield - Springfield, Missouri

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Second Springfield

Brigadier General Marmaduke's expedition into Missouri approached Springfield on the morning of January 8, 1863. That morning, the Confederates advanced in battle line to the attack. The day included desperate fighting with attacks and counterattacks until after dark; but the Federal troops held, and the Rebels withdrew during the night. The Confederates appeared in force the next morning but retired without attacking. The Federal depot was successfully defended, and Union strength in the area continued.READ MORE

18/05/1863

Battle - Vicksburg - Vicksburg, Mississippi

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Vicksburg

In mid-May, 1863, after six months of unsuccessful attempts, Maj. Gen. Ulysses S. Grant's Army of the Tennessee finally converged on Vicksburg, defended by a Confederate army under Lt. Gen. John C. Pemberton. Capture of the Mississippi River town was critical to Union control of the strategic river. Vicksburg was located on a high river bluff defended with artillery, and Pemberton's men had constructed a series of fortifications in an 8-mile arc surrounding the city on the landward side. After crossing the…READ MORE

02/08/1864

Leadership Change - Regiment - Lieutenant Colonel Henry A. Starr

Lieutenant ColonelHenry A. Starr

02/08/1864

Leadership Change - Brigade - undefined Colonel Henry Bertram

02/08/1864

Leadership Change - Division - undefined Major General Gordon Granger

02/08/1864

Battle - Mobile Bay - Mobile Bay, Alabama

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Mobile Bay

In the late summer of 1864, a Union combined Army-Navy force began operations to close Mobile Bay to blockade-running vessels from the port city of Mobile, Alabama. On August 3, infantry and cavalrymen under Maj. Gen. Gordon Granger landed on Dauphin Island and laid siege to Fort Gaines west of the main ship channel. Two days later, Rear Admiral David G. Farragut's fleet of eighteen ships, including four ironclad monitors, entered Mobile Bay and received devastating fire from both Fort Gaines and Fort Morg…READ MORE

27/03/1865

Battle - Spanish Fort - Baldwin, Alabama

14/07/1865

Mustered Out - Wisconsin 20th Infantry - Wisconsin

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