Peter Joseph Osterhaus (January 4, 1823 – January 2, 1917) was a

German-American German Americans (, ) are Americans who have full or partial German ancestry. According to the United States Census Bureau's figures from 2022, German Americans make up roughly 41 million people in the US, which is approximately 12% of the pop ...

Union Army general in the

American Civil War The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...

and later served as a diplomat.

Early life

Osterhaus was born in

Koblenz Koblenz ( , , ; Moselle Franconian language, Moselle Franconian: ''Kowelenz'') is a German city on the banks of the Rhine (Middle Rhine) and the Moselle, a multinational tributary. Koblenz was established as a Roman Empire, Roman military p ...

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, the son of Eleanora (Kraemer) and Josef Adolf Oisterhusz. He attended the Berlin Military Academy and after serving for some time as a Prussian Army officer and finding himself on the losing side in the

Revolutions of 1848 The revolutions of 1848, known in some countries as the springtime of the peoples or the springtime of nations, were a series of revolutions throughout Europe over the course of more than one year, from 1848 to 1849. It remains the most widespre ...

, he immigrated to the

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in 1858 and settled in

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Civil War

At the outbreak of the Civil War Osterhaus was appointed a

major Major most commonly refers to: * Major (rank), a military rank * Academic major, an academic discipline to which an undergraduate student formally commits * People named Major, including given names, surnames, nicknames * Major and minor in musi ...

of the 2nd Missouri Infantry Regiment and during the first year of the war was employed in

and

Arkansas Arkansas ( ) is a landlocked state in the West South Central region of the Southern United States. It borders Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, Texas to the southwest, and Oklahoma ...

, where he took a conspicuous part in the

Battle of Wilson's Creek The Battle of Wilson's Creek, also known as the Battle of Oak Hills, was the first major battle of the Trans-Mississippi Theater of the American Civil War. It was fought on August 10, 1861, near Springfield, Missouri. In August, Confe ...

and

Battle of Pea Ridge The Battle of Pea Ridge (March 7–8, 1862), also known as the Battle of Elkhorn Tavern, took place during the American Civil War near Leetown, Arkansas, Leetown, northeast of Fayetteville, Arkansas, Fayetteville, Arkansas. United States, Feder ...

. At Pea Ridge he commanded the troops that first made contact with

Confederate A confederation (also known as a confederacy or league) is a political union of sovereign states united for purposes of common action. Usually created by a treaty, confederations of states tend to be established for dealing with critical issu ...

forces advancing on the Union left. He was promoted to brigadier general on June 9, 1862. In 1863 he commanded a division in the

Battle of Port Gibson The Battle of Port Gibson (May 1, 1863) was fought between a Union Army commanded by Major General Ulysses S. Grant and a reinforced Confederate States Army division led by Major General John S. Bowen. Though the outnumbered Confederate soldiers f ...

, where he displayed tactical ability in prying Confederate defenders out of a favorable position. 21-32-114-osterhaus

Osterhaus continued in division command during the

Vicksburg Campaign The Vicksburg campaigns were a series of maneuvers and battles in the Western Theater of the American Civil War directed against Vicksburg, Mississippi, a fortress city that dominated the last Confederate-controlled section of the Mississippi ...

, fighting in the

Battle of Champion Hill The Battle of Champion Hill (aka Champion's Hill) of May 16, 1863, was the pivotal battle in the Vicksburg Campaign of the American Civil War (1861–1865). Union Army commander Major General Ulysses S. Grant and the Army of the Tennes ...

and at the

Battle of Big Black River Bridge The Battle of Big Black River Bridge was fought on May 17, 1863, as part of the Vicksburg Campaign of the American Civil War. During the war, the city of Vicksburg, Mississippi, was a key point on the Mississippi River. On April 30, 1863, a Un ...

, where he was slightly wounded. Osterhaus's division made an unsuccessful first attack on the defenses of Vicksburg, the first act of the

Siege of Vicksburg The siege of Vicksburg (May 18 – July 4, 1863) was the final major military action in the Vicksburg campaign of the American Civil War. In a series of maneuvers, Union Major General Ulysses S. Grant and his Army of the Tennessee crossed th ...

. His division helped cover the siege against intervention by the Confederate forces of Gen.

Joseph E. Johnston Joseph Eggleston Johnston (February 3, 1807 – March 21, 1891) was an American military officer who served in the United States Army during the Mexican–American War (1846–1848) and the Seminole Wars. After Virginia declared secession from ...

, and he took part in Maj. Gen.

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's advance on

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, that was designed to protect the rear of the

Army of the Tennessee The Army of the Tennessee was a Union Army, Union army in the Western Theater of the American Civil War, named for the Tennessee River. A 2005 study of the army states that it "was present at most of the great battles that became turning points ...

in its siege operations. After the fall of Vicksburg, Osterhaus's division was transferred to

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. In the

Chattanooga Campaign The Chattanooga campaign was a series of maneuvers and battles in October and November 1863, during the American Civil War. Following the defeat of Major general (United States), Maj. Gen. William S. Rosecrans's Union Army, Union Army of the C ...

he aided Maj. Gen.

Joseph Hooker Joseph Hooker (November 13, 1814 – October 31, 1879) was an American Civil War general for the Union, chiefly remembered for his decisive defeat by Confederate General Robert E. Lee at the Battle of Chancellorsville in 1863. Hooker had serv ...

in the capture of

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. Osterhaus then participated in the Atlanta Campaign but a month-long sick leave caused him to miss the crucial

Battle of Atlanta The Battle of Atlanta took place during the Atlanta Campaign of the American Civil War on July 22, 1864, just southeast of Atlanta, Georgia. Continuing their summer campaign to seize the important rail and supply hub of Atlanta, Union forces ...

. However, he returned to command and played a significant role in the

Battle of Jonesborough The Battle of Jonesborough (August 31–September 1, 1864) was fought between Union Army forces led by William Tecumseh Sherman and Confederate States of America, Confederate forces under William J. Hardee during the Atlanta Campaign in the Am ...

. After the capture of

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, he received command of the XV Corps, one of the four corps into which the army was consolidated, in the Sherman's March to the Sea. In March 1865 Osterhaus was appointed

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in the

Military Division of West Mississippi A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a d ...

under the command of Maj. Gen.

Edward Canby Edward Richard Sprigg Canby (November 9, 1817 – April 11, 1873) was a career United States Army officer and a Union general in the American Civil War. He served as a military governor after the war. In 1861–1862, Canby commanded the Depart ...

, a commander with little combat experience in high command. Osterhaus served Canby through the battles of Spanish Fort and

Fort Blakeley The Battle of Fort Blakeley took place from April 2 to April 9, 1865, in Baldwin County, Alabama, about north of Spanish Fort, Alabama, as part of the Mobile Campaign of the American Civil War. At the time, Blakeley, Alabama, had been the count ...

. When

Edmund Kirby Smith Edmund Kirby Smith (May 16, 1824March 28, 1893) was a General officers in the Confederate States Army, Confederate States Army Four-star rank, general, who oversaw the Trans-Mississippi Department (comprising Arkansas, Missouri, Texas, western L ...

surrendered the Confederate forces in the

Trans-Mississippi Theater The trans-Mississippi theater of the American Civil War was the scene of the major military operations west of the Mississippi River. The area is often thought of as excluding the states and territories bordering the Pacific Ocean, which formed ...

, Osterhaus was sent as Canby's representative and therefore personally signed the documents on behalf of the Union army. He was mustered out of the service on January 15, 1866, and the same year was appointed United States Consul at

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, but subsequently made his home in

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, at

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. He retired in 1905, and was in 1915 the oldest pensioner on the Army list. Osterhaus died in Duisburg and was buried in Koblenz, Germany. Some thought he was buried at the Koblenz Jewish Cemetery, perhaps as a Carmen Osterhaus, born in the 1850s, had been listed as a Holocaust victim. However, the family vault was instead located at "Der Hauptfriedhof Koblenz" (the main cemetery, or city cemetery, of Koblenz). The crypt no longer exists. Ruined by terrain shifts in 1969, it was then abandoned. In 2012, a marker was erected at the old site, jointly funded by the city of Koblenz and Osterhaus descendants, including biographer Mary Bobbitt Townsend.H. P. Kleber, ''Peter Joseph Osterhaus: ein deutsch-amerikanisches Leben''. Koblenzer Beitraege zur Geschichte und Kultur. New Series 2. 1992, p. 106.

Commemorations

Osterhaus is mentioned as losing a battle with

cavalry led by

Joseph Wheeler Joseph "Fighting Joe" Wheeler (September 10, 1836 – January 25, 1906) was a military commander and politician of the Confederate States of America. He was a cavalry general in the Confederate States Army in the 1860s during the American Civil ...

on the Turkey Town Monument near

Gadsden, Alabama Gadsden is the county seat of Etowah County in the U.S. state of Alabama. It is located on the Coosa River about northeast of Birmingham and southwest of Chattanooga, Tennessee. It is the primary city of the Gadsden Metropolitan Statist ...

References

* Eicher, John H., and Eicher, David J., ''Civil War High Commands'', Stanford University Press, 2001, . * Townsend, Mary Bobbitt. ''Yankee Warhorse: A Biography of Major General Peter Osterhaus'' (University of Missouri Press; 2010) 288 pages; scholarly biography * Woodworth, Steven E., ''Grant's Lieutenants,'' vol. 1: ''From Cairo to Vicksburg'', Lawrence: University of Kansas Press, 2001. *

Notes

External links