1st United States Sharpshooters

== Regimental History and Service Record ==
Companies "A," "D" and "H" organized at New York City September, 1861; Company "B" at Albany, N.Y., September, 1861; Company "C" in Michigan August 21, 1861; Company "E" in New Hampshire September 9, 1861; Company "F" in Vermont September 13, 1861; Company "G" in Wisconsin September 19, 1861; Company "I" in Michigan March 4, 1862, and Company "K" in Michigan March 30, 1862. Most of Regiment concentrated at Weehawken, N.J., September, 1861, and moved to Washington, D.C., September 24-25. Mustered in November 29, 1861. Served Unattached, Army of the Potomac, and Martindale's Brigade, Fitz John Porter's Division, Army of the Potomac, to March, 1862. Unassigned, 1st Division, 3rd Army Corps, Army of the Potomac, to May, 1862. 3rd Brigade, 1st Division, 5th Army Corps, to March, 1863. 3rd Brigade, 3rd Division, 3rd Army Corps, to June, 1863. 2nd Brigade, 1st Division, 3rd Army Corps, to September, 1863. 3rd Brigade, 1st Division, 3rd Army Corps, to March, 1864. 2nd Brigade, 3rd Division, 2nd Army Corps, to December, 1864.
SERVICE.--Duty in the Defenses of Washington, D. C., until March, 1862. 
* Moved to Fortress Monroe, Va., March 22. 
* March 22-September 2, 1862 - The Peninsula Campaign 
** Advance on Yorktown April 1-5. 
** April 4, 1862 - Skirmish at Howard's Mill, Virginia 
** Great Bethel April 4. 
** Warwick Road April 5. 
** April 5-May 4, 1862 - Siege of Yorktown, Virginia
** May 5, 1862 - Battle of Williamsburg, Virginia
** May 27-29, 1862 - Operations about Hanover Court House, Virginia 
*** May 27, 1862 - Engagement at Hanover Court House, Virginia 
** June 25-July 1, 1862 - The Seven Days Battles before Richmond, Virginia
*** June 26, 1862 - Engagement at Beaver Dam Creek, Virginia
*** June 27, 1862 - Engagement at Gaines's Mill, Virginia
*** June 29, 1862 - Engagement at Savage's Station, Virginia
*** June 29, 1862 - Battle of the Peach Orchard, Virginia
*** June 30, 1862 - Engagement at Turkey Bridge, Virginia
*** June 30, 1862 - Engagement at White Oak Swamp, Virginia
*** July 1, 1862 - Engagement at Malvern Hill, Virginia
Duty at Harrison's Landing until August 15. Movement to Centreville August 15-28. Pope's Campaign in Northern Virginia August 28-September 2. Battles of Groveton August 29; Bull Run August 30. 
* September 3-20, 1862 - The Maryland Campaign
** September 14, 1862 - Battle of South Mountain, Maryland
** September 17, 1862 - Battle of Antietam, Maryland
** September 19, 1862 - Actions at Sharpsburg and Shepherdstown/Blackford's/Boteler's Fords, Maryland
* Movement to Falmouth October 29-November 17.
* Battle of Fredericksburg, Va., December 12-15.
* Expedition from Potomac Creek to Richard's and Ellis' Fords, Rappahannock River, December 29-30.
* "Mud March" January 20-24, 1863.
* At Falmouth until April. 
* April 27-May 6, 1863 - The Chancellorsville Campaign
** May 1-5, 1863 - Battle of Chancellorsville, Virginia
* June 11-August 1, 1863 - The Gettysburg Campaign
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
Pursuit of Lee to Manassas Gap, Va., July 5-24. Wapping Heights, Va., July 23. Bristoe Campaign October 9-22. Auburn and Bristoe October 14. Advance to line of the Rappahannock November 7-8. Kelly's Ford November 7. Mine Run Campaign November 26-December 2. Payne's Farm November 27.
* Demonstration on the Rapidan February 6-7, 1864.
* May 4-June 12, 1864 - The Overland Campaign
** May 5-7, 1864 - Battle of the Wilderness, Virginia
** Laurel Hill May 8; 
** May 8-21, 1864 - Battles of Spotsylvania Court House, Virginia
*** May 10, 1864 - Combat at Po River, Virginia
*** May 12, 1864 - Assault on the Salient at Spotsylvania Court House, Virginia
*** May 19, 1864 - Engagement at Harris Farm, Virginia
** May 22-26, 1864 - Operations on Line of the North Anna River, Virginia
** May 26-28, 1864 - Operations on Line of the Pamunkey River, Virginia
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, Virginia
*** May 30-31, 1864 - Action at Hanover Court House, Virginia
** June 1-12, 1864 - Battles of Cold Harbor, Virginia
Before Petersburg June 16-19. Siege of Petersburg June 16 to December 31, 1864. Jerusalem Plank Road, Weldon Railroad, June 22-23. Demonstration north of the James July 27-29. Deep Bottom July 28-29. Demonstration north of the James at Deep Bottom August 13-20. Strawberry Plains August 14-18. Poplar Springs Church, Peeble's Farm, September 29-October 2. Boydton Plank Road, Hatcher's Run, October 27-28. Expedition to Weldon Railroad December 7-12. Company "A" mustered out August 19, Company "D" mustered out August 28, 1864. Veterans and Recruits assigned to Companies "I" and "K." Veterans of Company "H" to Company "D" September 15. 
* December 31, 1864 - Regiment consolidated with 2nd United States Sharpshooters
== Regimental Roster ==
== Regiment Statistical Information ==
Source 	Casualties	Remarks
Dyer 	
* 10 Officers and 143 enlisted men killed and mortally wounded 
* 1 Officer and 128 enlisted men killed by disease
* Total 282	None
Fox 	
* Fox lists this unit as:
** 156th on the list of units with losses based on duration of the entire term of service of the unit (1st of the United States regulars)	None
WotRWiki Statistics	
* troops killed
** Includes troops mortally wounded
** Includes troops killed by disease
** All others are troops killed in action or under special circumstances	
== Legacy ==
== Notes ==
== Sources == 
* (Pages 758, 760, 761, 828, 897, 899, 900, 902, 904, 905, 916, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 1716)
* (Page 14)
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