site logo
Federal flag

Federal Regiment

12th United States Infantry, First Battalion


Commanding Officer on the Antietam Campaign:
  Capt. Matthew M. Blunt


This Regiment's Chain of Command:
  Army - Army of the Potomac
  Corps - Fifth (V) Army Corps
  Division - 2nd Division, V Corps
  Brigade - 1st Brigade, 2nd Division, V Corps

Unit history


On the Antietam Campaign

"...Camp at Tenallytown was broken on the 9th [of September, 1862], and the battalions, commanded respectively by Captains Blunt and Anderson, advanced through Rockville to Frederick, thence to Middletown, where bivouac was made on the 14th. Crossed South Mountain, 15th, to Porterstown, forming part of the advance. There was some harmless artillery fire in the evening.

During the first part of the 16th the enemy's artillery was somewhat annoying. At 5 P. M. the 1st Battalion was ordered to relieve the 4th Infantry in guarding the Antietam Creek bridge. This position was held until about noon of the 17th, when a force of cavalry and horse artillery was crossed. This drew a heavy fire from the enemy's artillery. The fire of sharpshooters being annoying to Tidball's battery, a skirmish line was thrown out under Captain Frederick Winthrop, which soon drove them back. Shortly after, the battalion was advanced in support of the battery. About 7 P. M. orders were received to [re]join the brigade [on the East bank of the Antietam].

The loss was 1 killed, and 3 wounded. The 2d Battalion was held in reserve during the entire action, and suffered no loss. General Alfred Pleasanton, commanding the cavalry division, spoke in high terms of the services rendered by the regular battalions in supporting his horse artillery. "

(From: Lieut. Charles W. Abbot, Jr., Adjutant 12th U. S. Infantry, The Twelth Regiment of Infantry, 1889; found online at US Regulars.)

Maps Showing this Unit

Battlefield Tablets for this Unit

Tablet #33: Fifth Army Corps - 15 Sep, 2 PM to 16 Sep, 12 PM
Tablet #22: Sykes' Division, Fifth Army Corps - 15 Sep, 2 PM to 16 Sep, 12 PM
Tablet #87: 4th US and 1st Battalion/12th US Infantry - 16 Sep, 7 AM to 17 Sep, 12 PM
Tablet #88: First Battalion, 12th US Infantry - 16 Sep, 7 PM to 17 Sep, 6 PM
Tablet #122: Army of the Potomac - 17 Sep, 10 AM to 17 Sep, 6 PM
Tablet #121: Army of the Potomac - 17 Sep, 8 AM to 17 Sep, 6 PM

We have 9 individuals who were on the Maryland Campaign in the AotW database for this unit:


Co. Rank Name Casualty? Details*
UnkCaptBlunt, Matthew Marsh        We have a picture for this person We have some details for this person
--PvtDrinkwater, George Died   11/02
--PvtFord, James Died   12/24
--PvtHarris, James Died   12/24
--PvtMitchell, Samuel Died   10/06
--PvtRansom, J. Died   00/00
--PvtRockwell, P. Died   00/00
--PvtSumner, Albines P.Died   10/20
--PvtWoodcock, Selvey U.Died   00/00


* If there's a symbol in the Details column ...

We have a picture for this person - We have a picture for this person
We have further details for this person - We have details beyond name and rank
Click on their last name to see more