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Ohio 20th Volunteer Infantry (Union)

01/09/1861

Organized - Ohio 20th Volunteer Infantry - Ohio

11/02/1862

Battle - Fort Donelson - Fort Donelson, Tennessee

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Fort Donelson

Early in the war, Union commanders realized control of the major rivers would be the key to success in the Western Theater.READ MORE

06/04/1862

Leadership Change - Regiment - Lieutenant Colonel Manning F. Force

Lieutenant ColonelManning F. Force

06/04/1862

Leadership Change - Brigade - Colonel Charles Whittlesey

06/04/1862

Leadership Change - Division - Major General Lew Wallace

Major GeneralLew Wallace

06/04/1862

Battle - Shiloh - Hardin County, Tennessee

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Shiloh

On the morning of April 6, 1862, 40,000 Confederate soldiers under the command of Gen. Albert Sidney Johnston poured out of the nearby woods and struck the encamped divisions of Union soldiers occupying ground near Pittsburg Landing on the Tennessee River.READ MORE

29/04/1862

Battle - Siege of Corinth - Corinth, Mississippi

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Siege of Corinth

Union forces had captured the railroad junction and important transportation center at Corinth, Mississippi in the spring of 1862 after their victory at Shiloh. After the Battle of Iuka in September, Maj. Gen. Sterling Price's Confederate Army of the West marched to Ripley, Mississippi where it joined Maj. Gen. Earl Van Dorn's Army of West Tennessee. Van Dorn took command of the combined force numbering about 22,000 men. The Rebels marched southeast toward Corinth, hoping to recapture it and then sweep int…READ MORE

30/08/1862

Battle - Bolivar, Tennessee

01/05/1863

Battle - Port Gibson - Claiborne County, Mississippi

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Port Gibson

On April 30, 1863, Maj. Gen. Ulysses S. Grant's army crossed the Mississippi River at Bruinsburg, 30 miles south of his objective of Vicksburg. Grant hoped to move east toward the capital at Jackson to block the Confederate army there under Gen. Joseph E. Johnston from reinforcing Vicksburg. Port Gibson, ten miles east of Bruinsburg on the Bayou Pierre River, commanded the best approach routes and was the first Federal objective. A Confederate force there was commanded by Maj. Gen. John S. Bowen. Grant's A…READ MORE

12/05/1863

Leadership Change - Regiment - Colonel Manning Force

12/05/1863

Leadership Change - Brigade - Brigadier General Elias Smith Dennis

Brigadier GeneralElias Smith Dennis

12/05/1863

Leadership Change - Division - Brigadier General John A. Logan

Brigadier GeneralJohn A. Logan

12/05/1863

Battle - Raymond - Hinds County, Mississippi

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Raymond

On May 12th, 1863, after days of hard marching towards Jackson, Mississippi, Maj. Gen. Ulysses S. Grant fought to secure the crossings of Fourteenmile Creek southwest of Raymond, which would provide a vital water source for his men and animals and serve as a staging area for a strike on the Confederate rail supply line between Clinton and Edwards, Mississippi. Cutting the railroad here would cut off supplies to Grant's ultimate goal, the Mississippi River city of Vicksburg 30 miles to the west. At around…READ MORE

16/05/1863

Leadership Change - Regiment - Colonel Manning F. Force

16/05/1863

Leadership Change - Brigade - Brigadier General Mortimer D. Leggett

Brigadier GeneralMortimer D. Leggett

16/05/1863

Leadership Change - Division - Major General John A. Logan

Major GeneralJohn A. Logan

16/05/1863

Battle - Champion Hill - Hinds County, Mississippi

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Champion Hill

The Battle of Champion Hill was the largest and bloodiest action of Maj. Gen. Ulysses S. Grant's Vicksburg Campaign.READ MORE

18/05/1863

Leadership Change - Regiment - Colonel Manning F. Force, and Captain Francis M. Shaklee

18/05/1863

Leadership Change - Brigade - Brigadier General Mortimer D. Leggett, and Colonel Manning F. Force

Brigadier GeneralMortimer D. Leggett

ColonelManning F. Force

18/05/1863

Leadership Change - Division - undefined 2nd Illinois Cavalry Company A: Lt William B. Cummins, undefined Escort, and Major General John A. Logan

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

19/09/1863

Leadership Change - Regiment - Captain John F. Edward Grosskopff

19/09/1863

Leadership Change - Brigade - Colonel Joseph B. Dodge

19/09/1863

Leadership Change - Division - Brigadier General Richard W. Johnson

Brigadier GeneralRichard W. Johnson

19/09/1863

Battle - Chickamauga - Catoosa County, Georgia; Walker County, Georgia

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Chickamauga

After the successful Tullahoma Campaign, Maj. Gen. William Rosecrans continued the Union offensive, aiming to force Gen. Braxton Bragg's Confederate army out of Chattanooga. Through a series of skillful marches towards the Confederate-held city, Rosecrans forced Bragg out of Chattanooga and into Georgia. Determined to reoccupy the city, Bragg followed the Federals north, brushing with Rosecrans' army at Davis' Cross Roads. While they marched on September 18th, his cavalry and infantry skirmished with Un…READ MORE

27/06/1864

Battle - Kennesaw Mountain - Cobb County, Georgia

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Kennesaw Mountain

Fearing envelopment northwest of Atlanta, Confederate Gen. Joseph E. Johnston withdrew his army to a new defensive position astride Kennesaw Mountain near Marietta. Johnston selected this position in order to protect the Western & Atlantic Railroad, his supply link to Atlanta. Prior to taking up this new line on June 19th, Johnston had pioneers working through the night digging trenches and erecting fortifications, turning Kennesaw into a formidable earthen fortress. Having defeated Lieut. Gen. John…READ MORE

22/07/1864

Battle - Atlanta - Fulton County, Georgia; DeKalb County, Georgia

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Atlanta

Despite the defeat at Peach Tree Creek, Confederate Lieut. Gen. John Bell Hood still had hopes of driving Maj. Gen. William T. Sherman's Yankees from the outskirts of Atlanta with an offensive blow. On the night of July 21, 1864, Hood ordered Lt. Gen. William J. Hardee's corps to make 15-mile night march and assault the Union left flank east of the city, held by Maj. Gen. James B. McPherson's Army of the Tennessee. Joining the attack with Hardee would be the corps of Maj. Gen. Benjamin Cheatham. Hood attac…READ MORE

20/08/1864

Battle - Lovejoy's Station - Clayton County, Georgia

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Lovejoy's Station

The battle of Lovejoy's Station was fought on August 20th, 1864 in Clayton County, Georgia. It was a confederate victory where the confederates repelled the Union raiders attacking the station. The battle was part of the Atlanta campaign.READ MORE

31/08/1864

Leadership Change - Brigade - Lieutenant Colonel Greenberry F. Wiles

Lieutenant ColonelGreenberry F. Wiles

31/08/1864

Leadership Change - Division - Brigadier General Charles R. Woods

Brigadier GeneralCharles R. Woods

31/08/1864

Battle - Jonesborough - Clayton County, Georgia

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Jonesborough

By late August 1865, the city of Atlanta was not yet subdued by Maj. Gen. William T. Sherman's armies. A few supply lines remained open to the city supporting the army of Lieut. Gen. John B. Hood encircled there. Union cavalry raids inflicted only superficial damage, quickly repaired by the Confederates. Sherman determined that if he could destroy the Macon & Western and Atlanta & West Point Railroads to the south the Rebel army would be forced to evacuate the city. On August 25, Union infantry beg…READ MORE

30/11/1864

Leadership Change - Regiment - Lieutenant John S. Burdick

LieutenantJohn S. Burdick

30/11/1864

Leadership Change - Brigade - Captain Lyman Bridges

15/12/1864

Leadership Change - Regiment - Captain William Backus

15/12/1864

Leadership Change - Brigade - Major John J. Ely

15/12/1864

Leadership Change - Division - Brigadier General John F. Miller

Brigadier GeneralJohn F. Miller

15/12/1864

Battle - Nashville - Nashville, Tennessee

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Nashville

Despite a series of defeats in the closing days of November, 1864, Confederate Lieut. Gen. John Bell Hood continued to drag his bloodied Army of Tennessee, approximately 30,000 strong, north towards Nashville. The city was protected by 55,000 Union soldiers, which should have precluded further offensive operations, but Hood was determined and his situation was dire. Hood reached Nashville on December 2nd and staked out a position south of the city, hoping to draw the Union forces into a costly attack. Ulys…READ MORE

19/03/1865

Battle - Bentonville - Bentonville, North Carolina

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Bentonville

After his march to the sea, Maj. Gen. William T. Sherman headed north in early 1865 to unite with Lt. Gen. Ulysses S. Grant's army in Virginia. Only Confederate Gen. Joseph Johnston's army stood between Sherman and Grant. After briefly blocking Sherman's advance at Averasboro, North Carolina on March 16, Johnston struck Maj. Gen. Henry Slocum's wing of Sherman's army near Bentonville on March 19. The Confederates ran into stiff resistance, as Slocum established a defensive position. Johnston's assaults con…READ MORE

15/07/1865

Mustered Out - Ohio 20th Volunteer Infantry - Ohio

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