Missouri Civil War Union Infantry Units

United States     U.S. Military      Missouri      Missouri Military      Missouri in the Civil War      Missouri Civil War Union Infantry Units

The information in this list of Missouri Military Units comes from the Civil War Soldiers and Sailors web site (CWSS). That web site can also be searched by the name of a soldier.

-1st Units

 * 1st Rifle Battalion, Missouri Infantry (Union) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 1st Regiment, Missouri Infantry (3 months 1861) (Union) Organized at St. Louis, Missouri, for three months April 22, 1861. Designation of Regiment changed to 1st Missouri Light Artillery September 1, 1861.


 * 1st Regiment, Enrolled Militia, Missouri National Guard Infantry (Union) Called into service September 25, 1864, to repel Price's invasion of Missouri. Relieved from active service October 31, 1864. Action at Middle or Mill Creek Bridge July 24, 1864.


 * 1st Regiment, US Reserve Corps, Missouri Infantry (Union) Organized at St. Louis, Missouri, September 3, 1861. Mustered out October 6, 1862.


 * 1st Regiment, US Reserve Corps, Missouri Infantry (3 months, 1861) (Union) Organized for three months at St. Louis, Mo., May 7, 1861. Mustered out August 20, 1861.


 * 1st Regiment, Missouri State Militia Infantry (Union) Organized at St. Louis, Missouri, May 13, 1862, by consolidation of various companies State Militia Infantry raised at St. Louis, Missouri. Served as prison guard and Provost guard at St. Louis until September 28, 1862.

-2nd Units

 * 2nd Regiment, Missouri Infantry (Union) Organized at St. Louis, Missouri, September 10, 1861.


 * 2nd Regiment, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Missouri, April 22, 1861. Mustered out August 31, 1861.


 * 2nd Regiment, US Reserve Corps, Missouri Infantry (3 months, 1861) (Union) Reorganized at St. Louis August 23 to September 20, 1861.


 * 2nd Regiment, US Reserve Corps, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Missouri, May 7, 1861. Mustered out August 16, 1861.

-3rd Units

 * 3rd Regiment, Missouri Infantry (Union) Organized at St. Louis, Missouri, September 3, 1861, to January 18, 1862. At various locations, then with 3rd Brigade, 1st Division, 15th Army Corps, to November, 1864.


 * 3rd Regiment, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Missouri, April 22, 1861. Mustered out September 4, 1861.


 * 3rd Regiment, US Reserve Corps, Missouri Infantry (Union) Organized at St. Louis. Missouri, August and September, 1861. Consolidated with Gasconade Battalion to form 4th Missouri Infantry January 18, 1862.


 * 3rd Regiment, US Reserve Corps, Missouri Infantry (3 months 1861) (Union) Organized at Turner Hall, St. Louis, Missouri, May 8, 1861. Mustered out August 18, 1861.

-4th Units

 * 4th Regiment, Missouri Infantry (Union) Organized at St. Louis, Missouri, by consolidation of Gasconade Battalion and 3rd Regiment United States Reserve Corps January, 1862. Mustered out February 1, 1863.


 * 4th Regiment, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Missouri, April 22, 1861. Mustered out July 30, 1861.


 * 4th Regiment, US Reserve Corps, Missouri Infantry (Union) Organized at St. Louis, Missouri, September, 1861. Mustered out January 13, 1862.


 * 4th Regiment, US Reserve Corps, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Missouri, May 8, 1861. Mustered out August 18, 1861.

-5th Units

 * 5th Regiment, Missouri Infantry (Union) Organized at St. Louis March 18, 1862, by consolidation of 5th United States Reserve Corps, Voerster's Company Sappers and Miners, Giester's Company Pioneers and Winkelman's Company Pontooneers. Companies "A" and "I" transferred to 25th Missouri Infantry, and Companies "H" and "K" to 27th Missouri Infantry. Companies "B," "C," "D," "E," "F" and "G" mustered out November 22, 1862.


 * 5th Regiment, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Mo., May 18, 1861. Mustered out August 27, 1861.


 * 5th Regiment, US Reserve Corps, Missouri Infantry (Union) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 5th Regiment, US Reserve Corps, Missouri Infantry (3 months, 1861) (Union) Organized at St. Louis, Mo., May 11, 1861. Mustered out August 31, 1861.


 * 6th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Mo., June 15-July 9, 1861.


 * 7th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Mo., June, 1861.


 * 8th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Mo., June 12 to August 14, 1861.


 * 9th Regiment, Missouri Infantry Union Missouri "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 10th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, August, 1861. Served at various locations to December, 1863. With the 2nd Brigade, 3rd Division, 15th Army Corps, to October, 1864.


 * 11th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, August, 1861. Served at various locations to August, 1865. In the District of Alabama to December, 1865.


 * 12th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, August, 1861. Served with various units to December, 1863. With the 3rd Brigade, 1st Division, 15th Army Corps, to November, 1864.


 * 13th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, September, 1864, to February, 1865, from Veterans of Missouri State Militia Regiments. Attached to District of Rolla and Dept. of Missouri to July, 1866.


 * 15th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, August and September, 1861. Served with various units to August, 1865. Then with the Department of Texas to December, 1865.


 * 16th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 17th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, August, 1861. Served with various units to December, 1863. With the 3rd Brigade, 1st Division, 15th Army Corps, to December, 1864.


 * 18th Regiment, Missouri Infantry Union Missouri Organized at Laclede, Missouri, July to November, 1861. Served with various units to September, 1864. With the 1st Brigade, 1st Division, 17th Army Corps, to July, 1865.


 * 19th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 20th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 21st Regiment, Missouri Infantry (Union) Organized February 1, 1862, from 1st and 2nd Northeast Regiments Missouri Infantry. Served with various units to August, 1865. Then with the Department of Alabama to April, 1866.


 * 22nd Regiment, Missouri Infantry (Union) Organized in Missouri at large August to December, 1861. Served unassigned, Dept. of Missouri, to March, 1862. Unassigned, Army of Mississippi, to July, 1862.


 * 23rd Regiment, Missouri Infantry (Union) Organized in Missouri at large September, 1861. Served with various units to July, 1864. With the 1st Brigade, 3rd Division, 14th Army Corps, to July, 1865.


 * 24th Regiment, Missouri Infantry (Union) Organized in Missouri at large October 24 to December 28, 1861. Served with various units to June 1864. Then with the Department of the Tennessee to October, 1864.


 * 25th Regiment, Missouri Infantry (Union) Organized as 13th Missouri Infantry June, 1861. Designation changed to 25th Missouri September, 1861. Served with various units to June, 1863. With 6th Division, 16th Army Corps, Department of the Tennessee, to February, 1864.


 * 26th Regiment, Missouri Infantry (Union) Organized in Missouri at large September to December, 1861. Served with various units to April, 1865. With the 3rd Brigade, 2nd Division, 15th Army Corps, to August, 1865.


 * 27th Regiment, Missouri Infantry (Union) Organized at St. Louis, Mo., September 2, 1862, to January 8, 1863. Attached to District of Rolla, Department of Missouri, to March, 1863. With the 1st Brigade, 1st Division, 15th Army Corps, Army of the Tennessee, to June, 1865.


 * 27th Regiment, Missouri Mounted Infantry (Union) Organized in Missouri at large May to November, 1861. Companies "G," "H" and "I" organized for three months. Mustered out January 27 to February 28, 1862.


 * 29th Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, and St. Louis, Missouri, July to October, 1862. Served with various units to November, 1864. Unattached, 15th Army Corps, to June, 1865.


 * 30th Regiment, Missouri Infantry Union Missouri Organized at St. Louis, Missouri, September and October, 1862. With various units to July, 1865. With Department of Texas to August, 1865.


 * 31st Regiment, Missouri Infantry (Union) Organized at St. Louis, Carondelet and Ironton, Missouri, August 11 to October 7, 1862. Served with various units to September, 1864. With the 1st Brigade, 1st Division, to November, 1864.


 * 32nd Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, October 18-December 8, 1862. Served with various units to September, 1864. With the 1st Brigade, 1st Division, 15th Army Corps, to July, 1865.


 * 32nd Regiment, Missouri Infantry (New) (Union) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 33rd Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, August 29-September 5, 1862. Served with various units to February, 1865. With the 3rd Brigade, 1st Division, 16th Army Corps (New), Military Division West Mississippi, to August, 1865.


 * 34th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 35th Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, December 3, 1862. Served with various units to February, 1865. With the 1st Brigade, 1st Division, 7th Army Corps, to June, 1865.


 * 36th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 37th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 38th Regiment, Missouri Infantry (Union) Failed to complete organization.


 * 39th Regiment, Missouri Infantry (Union) Organized at Hannibal, Missouri, August 18 to September 30, 1864. Served with various units to January, 1865. With the District of St. Louis, Missouri, to July, 1865.


 * 40th Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, August 11 to September 8, 1864. Served with various units to March, 1865. With the 2nd Brigade, 3rd Division, 16th Army Corps, to August, 1865.

Units 41st thru 50th

 * 41st Regiment, Missouri Infantry (Union) Organized at Benton Barracks, Missouri, August and September, 1864. Mustered in September 16, 1864. Mustered out July 11, 1865.


 * 42nd Regiment, Missouri Infantry (Union) Organized at Macon, Missouri, September, 1864. Served with various units to April, 1865. With the 2nd Brigade, 1st Sub-District, District of Middle Tennessee, to June, 1865.


 * 43rd Regiment, Missouri Infantry (Union) Organized at St. Joseph, Missouri, August 22 to September 7, 1864. Attached to District of Northern Missouri, Dept. of Missouri, to April, 1865. District of Central Missouri, to June, 1865.


 * 44th Regiment, Missouri Infantry (Union) Organized at St. Joseph, Missouri, August 22-September 7, 1864. Served with various units to February, 1865. With the 1st Brigade, 3rd Division, 16th Army Corps (New), Military Division West Mississippi, to August, 1865.


 * 45th Regiment, Missouri Infantry (Union) Organized at Sedalia, Warrensburg and Otterville August 10 to September 17, 1864. Attached to District of St. Louis, Missouri, Dept. of Missouri, to December, 1864. Unattached, 4th Division, 23rd Army Corps, Army Ohio, to March, 1865.


 * 46th Regiment, Missouri Infantry (Union) Organized at Springfield, Missouri, August to November, 1864, for six months. Attached to District of Southwest Missouri, Department of Missouri, to March, 1865. With the 2nd Brigade, 1st Sub-District, District of Middle Tennessee, Department of the Cumberland, to May, 1865.


 * 47th Regiment, Missouri Infantry (Union) Organized at Pilot Knob, Missouri, August 22 to September 11, 1864. Served with various units to December, 1864. With the Department Cumberland, to March, 1865.


 * 48th Regiment, Missouri Infantry (Union) Organized at St. Louis, Jefferson City and Rolla, Missouri, August 3-November 22, 1864. Served with various units to February, 1865. At Camp Douglas, Chicago, Illinois, to June, 1865.


 * 49th Regiment, Missouri Infantry (Union) Organized at Warrenton, Mexico, Macon and St. Louis, Missouri, August 31, 1864, to February 5, 1865. Served with various units to August, 1865. Department of Alabama to December, 1865.


 * 50th Regiment, Missouri Infantry (Union) Organized in Missouri at large September 11, 1864, to April 27, 1865. Mustered out July 1 to August 11, 1865.