Headquarters Units
- 24th Missouri Infantry (5 companies)- Maj. Eli W. Weston
- 3rd Iowa Cavalry (5 companies)-Colonel Cyrus Bussey
- Bowen’s Missouri Cavalry Battalion (4 companies plus 4 mountain howitzers)-Maj. William D. Bowen
1st and 2nd Divisions - Brigadier General Franz Sigel
1st Division - Colonel Peter J. Osterhaus
1st Brigade - Colonel Peter J. Osterhaus
- 25th Illinois Infantry - Colonel William N. Coler
- 44th Illinois Infantry - Colonel Charles Knobelsdorff
- 17th Missouri Infantry (Company A detached) - Maj. August H. Poten
2nd Brigade - Colonel Nicholas Gruesel
- 36th Illinois Infantry (Company F detached) - Colonel Nicholas Gruesel
- 12th Missouri Infantry (Company E detached) - Maj. Hugo Wangelin
- 4th Independent Battery, Ohio Light Artillery - Capt. Louis Hoffman
- Welfley’s Independent Battery, Missouri Light Artillery - Capt. Martin Welfley
2nd Division - Brig. Gen. Alexander S. Asboth (wounded)
1st Brigade - Colonel Frederick Shaefer
- 2nd Missouri Infantry - Lt. Colonel Bernard Laiboldt
- 15th Missouri Infantry - Colonel Francis J. Joliat
- 1st Missouri Flying Artillery Battery - Capt. Gustavus M. Elbert
- 2nd Independent Battery, Ohio Light Artillery - Lt. William B. Chapman
Not Brigaded
- 3rd Missouri Infantry (3 companies) - Maj. Joseph Conrad
- 4th Missouri Cavalry (6 companies) - Maj. Emeric Meszaros
- 5th Missouri Cavalry - Colonel Joseph Nemett
3rd Division - Colonel Jefferson C. Davis
1st Brigade - Colonel Thomas Pattison
- 8th Indiana Infantry - Colonel William P. Benton
- 18th Indiana Infantry - Lt. Colonel Henry D. Washburn
- 22nd Indiana Infantry (Company B absent) - Lt. Colonel John A. Hendricks (killed)
- 1st Battery Indiana Light Artillery - Capt. Martin Klauss
2nd Brigade - Colonel Julius White
- 37th Illinois Infantry - Lt. Colonel Myron Barnes
- 59th Illinois Infantry - Lt. Colonel Calvin H. Frederick
- Battery A, 2nd Illinois Light Artillery - Capt. Peter Davidson
Not Brigaded
- 1st Missouri Cavalry (8 companies) - Colonel Calvin A. Ellis
4th Division - Colonel Eugene A. Carr (wounded)
1st Brigade - Colonel Grenville M. Dodge (wounded)
- 4th Iowa Infantry - Lt. Colonel John Galligan (wounded)
- 35th Illinois Infantry - Colonel Gustavus A. Smith (wounded)
- 3rd Illinois Cavalry - Maj. John McConnell
- 1st Independent Battery, Iowa Light Artillery - Capt. Junius A. Jones (wounded)
2nd Brigade - Colonel William Vandever
- 9th Iowa Infantry - Lt. Colonel Francis J. Herron (wounded, captured)
- 25th Missouri Infantry - Colonel John S. Phelps (wounded)
- 3rd Independent Battery, Iowa Light Artillery - Capt. Mortimer M. Hayden