Union Regular Army in the Civil War

United States U.S. Military  U.S. Civil War, 1861 to 1865  Union Regular Army in the Civil War



Introduction
The Union Regular Army was the permanent core of the army. During the Civil War, only about 3% of the army was made up of Regular Army troops. The other 97% was composed of militia and volunteer units organized by states. However, the state units were controlled by federal generals. The state units were called United States Volunteers (USV) to designate them from the Regular Army (USA).

Union Regular Army Units
Most units were numbered, however, some were named. See the table below for lists of the regiments, battalions, batteries, and other units.

The information in the lists of Union Regular Army Units comes from the Civil War Soldiers and Sailors web site. That web site also can be searched by the name of a soldier.

Union Regular Army Units by Number or by Name Union Units 1st-19th 20th-44th A to Z Union Regular Army Units by Type of Unit Union Units Infantry Cavalry Artillery Other

Units

 * Artillery Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * Cavalry Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * Engineer Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * Infantry Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 1st Regiment, US Rifles (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 1st Regiment, US Artillery (Regular Army) "Organized by Battery between January 1861 and March 1861. The batteries served in various places until January 1866.


 * 1st Regiment, US Mounted Light Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 1st Regiment, US Cavalry (Regular Army) On the Pacific Coast till November, 1861, Concentrated at Washington, D.C., November, 1861, to January, 1862. Regiment attached to Cooke's Cavalry Reserve, Army Potomac, January to March, 1862. 2nd Brigade, Cavalry Reserve, Army Potomac, to July, 1862. Surrender of Lee and his army. Ordered to New Orleans, La., and duty there till December, 1865.


 * 1st Regiment, US Dragoons (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 1st Regiment, US Infantry (Regular Army) Attached to Dept. of Missouri (6 Cos.) April, 1861, to March, 1862. Unassigned, and Unattached, to October, 1863. Defences of New Orleans, La to October, 1865.


 * 1st Regiment, US Sharpshooters (Regular Army) Organized at New York City September, 1861 Mustered in November 29, 1861 to December, 1864.


 * 2nd Detachment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 2nd Regiment, US Artillery (Regular Army) Organized by Battery between January 1861 at Washington, D.C and May 1865. The Batteries served in various places until August 1865


 * 2nd Regiment, US Cavalry (Regular Army) Organized by December, 1861 until July, 1865


 * 2nd Regiment, US Dragoons (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 2nd Regiment, US Engineers (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 2nd Regiment, US Infantry (Regular Army) Organized in Kansas January, 1861 to October, 1865.


 * 2nd Regiment, US Sharpshooters (Regular Army) Organized by Companies as follows: Company "A" in Minnesota October 5, 1861; Company "B" in Michigan October 4, 1861; Company "C" in Pennsylvania October 4, 1861; Company "D" in Maine November 2, 1861; Company "E" in Vermont November 9, 1861; Company "F" in New Hampshire November 28, 1861; Company "G" in New Hampshire December 10, 1861; Company "H" in Vermont December 31, 1861 to February, 1865.


 * 3rd Detachment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 3rd Regiment, US Artillery (Regular Army) Organized by Battery from Southern California through Arizona to New Mexico between April 13-September 20, 1862 till August, 1865.


 * 3rd Regiment, US Cavalry (Regular Army) Organized in New Mexico at the outbreak of the Rebellion 1861 until September 1862.Unattached to the Department of Arkansas until April 1866


 * 3rd Regiment, US Infantry (Regular Army) Organized at Texas until March, 1861. Companies "C" and "E" moved to New York March, 1861, and Companies "B," "D," "G," "H" and "K" to New York March 19-April 25, 1861. Companies "A," "F" and "I" surrendered at Mattagorda Bay, Texas, April 26, 1861. The rest of the companies served until October 1865.


 * 4th Regiment, US Artillery (Regular Army) Organized by Battery between October 1861 and 1862. The Batteries served in various places until July 1865


 * 4th Regiment, US Cavalry (Regular Army) On duty at Forts Washita, Wise and Kearney, Kan., at outbreak of the Rebellion. Moved to Fort Leavenworth, Kan., April 17-May 31, 1861. Duty continued until November 1865.


 * 4th Regiment, US Infantry (Regular Army) Organized in California January, 1861. Ordered to Washington, D.C and moved to duty at Richmond, Va., until July, 1865. Moved to N.Y. Harbor July 15, 1865


 * 5th Regiment, US Artillery (Regular Army) Organized by Battery between July 1861 and November 1862. The Batteries served in various places until August 1865


 * 5th Regiment, US Cavalry (Regular Army) Organized by direction of the President from 2nd Cavalry August 3, 1861 to June, 1865.


 * 5th Regiment, US Infantry (Regular Army) Duty in the Dept. of New Mexico throughout the war, operating against Indians. Battle of Valverde, N.M., February 21, 1862. Expedition against Indians in Central Arizona December 2,1864 - January 1, 1865.


 * 6th Detachment, US Artillery (Regular Army) Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 6th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 6th Regiment, US Cavalry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861 to October, 1865.


 * 6th Regiment, US Infantry (Regular Army) Organized in California April, 1861 served until October 1865


 * 7th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 7th Regiment, US Infantry (Regular Army) Organized in New Mexico, January, 1861 moved ot Florida and served until May 1865


 * 8th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 8th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 8th Regiment, US Infantry (Regular Army) In Texas January, 1861 and served in various areas until August 1865


 * 9th Regiment, US Infantry (Regular Army) On duty at posts about San Francisco, Cal., September, 1861, to November, 1865.


 * 10th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 10th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 10th Regiment, US Infantry (Regular Army) Companies "B," "E," "G" and "I" at Washington, D. C., January, 1862. Companies "D" and "K" at Fort Laramie, Neb., till June, 1862. Served until October 1865


 * 11th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 11th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 11th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Fort Independence, Boston Harbor, to October, 1865.


 * 12th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 12th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Fort Hamilton, N.Y. Harbor. to July, 1865.


 * 13th Regiment, US Infantry (Regular Army) Created by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Jefferson Barracks, Mo. to July, 1865.


 * 14th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 14th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 14th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Fort Trumball, Conn. to June, 1865. Dept. of Virginia to


 * 15th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Regiment organized at Wheeling, W. Va. to July, 1865.


 * 16th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Chicago, Ill. to July, 1865.


 * 17th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed July 29, 1861, by Act of Congress. Regiment organized at Fort Preble, Maine. to October, 1865.


 * 18th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Regiment organized at Columbus, Ohio to July, 1865.


 * 19th Regiment, US Infantry (Regular Army) Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Organized at Indianapolis, Ind. to July, 1862.


 * 20th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 21st Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 21st Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 21st Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 22nd Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 22nd Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 22nd Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 23rd Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 23rd Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 23rd Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 24th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 24th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 24th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 25th Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 25th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 25th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 26th Regiment, US Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 26th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 27th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 28th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 29th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 30th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 31st Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 32nd Regiment, US Artillery (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


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


 * 33rd Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 34th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 35th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 36th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 37th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 39th Regiment, US Infantry (Regular Army) No further information from the website Civil War Soldiers and Sailors


 * 41st Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 42nd Regiment, US Infantry (Regular Army) No further information from the website Civil War Soldiers and Sailors


 * 43rd Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * 44th Regiment, US Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Adjutant General's Office (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Army (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Band (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Carlisle Barracks, Pennsylvania (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Fort Columbia/Columbus, New York Harbor (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Depot (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Cavalry Depot (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Dragoons (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Executive Mansion (White House) (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Corps of Engineers (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Mounted Service (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Recruiting Service (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Service (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Service Cavalry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * General Service Infantry (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Headquarters, U.S. Army (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Hospital Service (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Hospital Steward (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Invalid Corps (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Jefferson Barracks, Missouri (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Medical Cadet (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Medical Service (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Navy "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Newport Barracks, Kentucky (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Ordnance Department (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Army of the Potomac (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Artillery Detachment,Presidio of San Francisco(Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Provost Marshall General Office(Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Quartermaster General's Office (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Rifles (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Signal Corps (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Soldiers' Home (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * Unassigned (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Military Academy (West Point) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * US Military Academy Band (West Point) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * West Point Ordnance Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * West Point Artillery Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * West Point Cavalry Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * West Point Engineer Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit


 * West Point Infantry Detachment (Regular Army) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit