Siege of Vicksburg order of battle: Union

The following Union Army units and commanders fought in the Siege of Vicksburg of the American Civil War. 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
• BG = Brigadier General
• Col = Colonel
• Ltc = Lieutenant Colonel
• Maj = Major
• Cpt = Captain
• Lt = Lieutenant
• Sgt = Sergeant

Other

• w = wounded
• mw = mortally wounded
• k = killed

Army of the Tennessee

MG Ulysses S. Grant, Commanding

General Staff:

• Acting Inspector General: BG Jeremiah C. Sullivan
• Chief of Transportation: Col Joseph D. Webster
• Chief of Staff: Ltc John A. Rawlins

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
  • 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

MG John Parke

XIII Corps

MG John A. McClernand
MG Edward Ord

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)

MG Cadwallader C. Washburn

XVII Corps

MG James B. McPherson

Escort

• 4th Company Ohio Cavalry: Cpt John S. Foster

District of Northeast Louisiana

BG Elias S. Dennis

Notes

References

• 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.
• 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.
• Civil War Home: Organization of the Union Army At Vicksburg May 19–July 4, 1863 -- The Siege of Vicksburg, Miss.
• National Park Service: Vicksburg National Military Park (Siege of Vicksburg: Union order of battle).
• 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)