Union Regular Army Infantry Units

United States

U.S. Military

Union Regular Army

Union Regular Army Infantry Units

The information in this list of Union Regular Army 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.

Units 1st through 10th

• 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.
  

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

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

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

• 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.
  

Units 11th through 19th

• 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 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 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 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.
  

Units 20th through 29th

• 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 Infantry (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 Infantry (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 Infantry (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.
  

Units 30th through 39th

• 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 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
  

Units 41st through 44th

• 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
  

Units G through W

• General Service Infantry (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.
  

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