The following

Union Army During the American Civil War, the Union Army, also known as the Federal Army and the Northern Army, referring to the United States Army, was the land force that fought to preserve the Union (American Civil War), Union of the collective U.S. st ...

units and commanders fought in the Siege of Vicksburg of the

American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...

. The Confederate order of battle is listed separately. Order of battle compiled from the army organization during the campaign.

Abbreviations used

Military rank

* MG =

Major General Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of a ...

* BG =

Brigadier General Brigadier general or Brigade general is a military rank used in many countries. It is the lowest ranking general officer in some countries. The rank is usually above a colonel, and below a major general or divisional general. When appointed ...

* Col =

Colonel Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...

* Ltc =

Lieutenant Colonel Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colone ...

* Maj =

Major Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...

* Cpt =

Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...

* Lt =

Lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a commissioned officer rank in the armed forces of many nations. The meaning of lieutenant differs in different militaries (see comparative military ranks), but it is often sub ...

* Sgt =

Sergeant Sergeant (abbreviated to Sgt. and capitalized when used as a named person's title) is a rank in many uniformed organizations, principally military and policing forces. The alternative spelling, ''serjeant'', is used in The Rifles and other uni ...

Other

* w = wounded * mw =

mortally wounded : A mortal wound is an injury that will ultimately lead to a person's death. wiktionary:mortal, ''Mortal'' refers to the mortality of a human: whether they are going to live or die."mortal_adjective." Oxford Advanced Learner's Dictionary. 2018. O ...

* k = killed

Army of the Tennessee

Ulysses S. Grant Ulysses S. Grant (born Hiram Ulysses Grant ; April 27, 1822July 23, 1885) was an American military officer and politician who served as the 18th president of the United States from 1869 to 1877. As Commanding General, he led the Union Ar ...

, Commanding

General Staff: * Acting Inspector General: BG

Jeremiah C. Sullivan Jeremiah Cutler Sullivan (October 1, 1830 – October 21, 1890) was an Indiana lawyer, antebellum United States Navy officer, and a brigadier general in the Union Army during the American Civil War. He was among a handful of former Navy officers ...

* Chief of Transportation: Col

Joseph D. Webster Joseph Dana Webster (August 25, 1811 – April 12, 1876) was a United States civil engineer and soldier most noted for administrative services during the American Civil War, where he served as chief of staff to both Ulysses S. Grant and William ...

* Chief of Staff: Ltc

John A. Rawlins John Aaron Rawlins (February 13, 1831 September 6, 1869) was a general officer in the Union Army during the American Civil War and a cabinet officer in the Grant administration. A longtime confidant of Ulysses S. Grant, Rawlins served on Grant's ...

General Headquarters: * Escort: 4th Illinois Cavalry, Company A: Cpt Embury D. Osband * Engineers: 1st Battalion, Engineer Regiment of the West: Maj William Tweeddale * Mississippi Marine Brigade: BG

Alfred W. Ellet Alfred Washington Ellet (October 11, 1820 – January 9, 1895) was a brigadier general in the Union Army who commanded the United States Ram Fleet and the Mississippi Marine Brigade during the American Civil War. Early life and education Elle ...

** Mississippi Ram Fleet: Col Charles Rivers Ellet ** 1st Battalion Infantry: Ltc George E. Currie ** 1st Battalion Cavalry: Major James M. Hubbard ** Artillery Battery: Cpt Daniel Walling

IX Corps

John Parke John Grubb Parke (September 22, 1827 – December 16, 1900) was a United States Army engineer and a Union general in the American Civil War. Parke's Civil War service was closely associated with Ambrose E. Burnside, often serving him as chi ...

XIII Corps

MG John A. McClernandRelieved June 19.
MG

Edward Ord Edward Otho Cresap Ord (October 18, 1818 – July 22, 1883) was an American engineer and United States Army officer who saw action in the Seminole War, the Indian Wars, and the American Civil War. He commanded an army during the final days of th ...

Escort * 3rd Illinois Cavalry, Company L: Cpt David R. Sparks Pioneers * Kentucky Engineers (Independent Company): Cpt William F. Patterson

XV Corps

MG William T. Sherman *Chief of Staff: Ltc John Henry Hammond *Chief of Artillery: Maj Ezra Taylor

XVI Corps (detachment)

Cadwallader C. Washburn Cadwallader Colden Washburn (April 22, 1818May 14, 1882) was an American businessman, politician, and soldier who founded a mill that later became General Mills. A member of the Washburn family of Maine, he was a U.S. Congressman and governor o ...

XVII Corps

James B. McPherson James Birdseye McPherson (November 14, 1828 – July 22, 1864) was a career United States Army officer who served as a general in the Union Army during the American Civil War. McPherson was on the General's staff of Henry Halleck and late ...

Escort * 4th Company Ohio Cavalry: Cpt John S. Foster

District of Northeast Louisiana

Elias S. Dennis Elias Smith Dennis (December 4, 1812 – December 17, 1894) was a politician and soldier from the state of Illinois who served as a general in the Union Army during the American Civil War. Early life and career Dennis was born in Newburgh, ...

Notes

References

*U.S. War Department
''The War of the Rebellion''
''a Compilation of the

Official Records The ''Official Records of the Union and Confederate Armies in the War of the Rebellion'', commonly known as the ''Official Records of the Union and Confederate Armies'' or Official Records (OR or ORs), is the most extensive collection of Americ ...

of the Union and Confederate Armies'', U.S. Government Printing Office, 1880–1901. *U.S. War Department, ''The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies'', U.S. Government Printing Office, 1880–1901:
General summary of Casualties in the Union forces against Vicksburg, May 1–July 4, 1863.
* ttp://www.nps.gov/vick/historyculture/order-of-battle-union.htm National Park Service: Vicksburg National Military Park (Siege of Vicksburg: Union order of battle).br>National Park Service: Vicksburg National Military Park (Troops in the Campaign, Siege and Defense of Vicksburg).National Park Service: Vicksburg National Military Park (Campaign, Siege and Defense of Vicksburg -- General summary of Casualties, March 29–July 4).
* Hess, Earl J
"Storming Vicksburg: Grant, Pemberton, and the Battles of May 19-22, 1863."
University of North Carolina Press (2020) {{DEFAULTSORT:Vicksburg Union Order Of Battle American Civil War orders of battle