1st United States Artillery / Battery I

== Regimental History and Service Record ==
Stationed at Fort Leavenworth, Kan., January, 1861. Moved to Washington, D.C., January 7-29, 1861, and duty there until July. Attached to Wilcox's Brigade, Heintzelman's Division, McDowell's Army Northeastern Virginia, to August, 1861. Stone's Brigade, Division Potomac, to October, 1861. Stone's (Sedgwick's) Division, Army Potomac, to March, 1862. Artillery, 2nd Division, 2nd Army Corps, Army Potomac, to November, 1862. Reserve Artillery, 2nd Army Corps, to May, 1863. Artillery Brigade, 2nd Army Corps, to November, 1863. 2nd Brigade, Horse Artillery, Artillery Reserve, Potomac, to May, 1865. Defenses of Washington, D.C., 22nd Corps.
SERVICE.--
* July 16-21, 1861 - The Manassas Campaign
** July 21, 1861 - Battle of Bull Run, Virginia
* Moved to Poolesville, Md., August 7-15. 
* Duty there and at Edward's Ferry until March, 1862. 
* Ball's Bluff October 21, 1861. 
* October 21-22, 1861 - Skirmishes near Edward's Ferry, Maryland
* Ordered to the Virginia Peninsula March, 1862. 
* March 17-September 2, 1862 - The Peninsula Campaign 
** April 5-May 4, 1862 - Siege of Yorktown, Virginia
** May 31-June 1, 1862 - Battle of Seven Pines, Virginia 
** June 25-July 1, 1862 - The Seven Days Battles before Richmond, Virginia
*** June 29, 1862 - Battle of the Peach Orchard, Virginia
*** June 29, 1862 - Engagement at Savage's Station, Virginia
*** June 30, 1862 - Engagement at White Oak Swamp, Virginia
*** July 1, 1862 - Engagement at Malvern Hill, Virginia
Moved to Alexandria, Va., August 16-23. 
* September 3-20, 1862 - The Maryland Campaign
** September 17, 1862 - Battle of Antietam, Maryland
At Harper's Ferry until October 30. Movement to Falmouth, Va., October 30-November 17. Battle of Fredericksburg December 11-15. "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
Advance to line of the Rapidan September 13-17. Bristoe Campaign October 9-22. Bristoe Station October 14. Advance to line of the Rappahannock November 7-8.
* Mine Run Campaign November 26-December 2.
* May 4-June 12, 1864 - The Overland Campaign
** May 5-7, 1864 - Battle of the Wilderness, Virginia
** May 8-21, 1864 - Battles of Spotsylvania Court House, Virginia
** May 22-26, 1864 - Operations on Line of the North Anna River, VirginiaNot originally listed on Dyer summary
** May 26-28, 1864 - Operations on Line of the Pamunkey River, VirginiaNot originally listed on Dyer summary
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, VirginiaNot originally listed on Dyer summary
** June 1-7, 1864 - Battles of Cold Harbor, Virginia
** Gaines' Mill, Salem Church and Haw's Shop June 2. 
** June 7-24, 1864 - (Sheridan's) Raid to Trevillian Station, Virginia
*** June 11-12, 1864 - Engagement at Trevillian Station, Virginia
Black Creek or Tunstall Station and White House or St. Peter's Church June 21. St. Mary's Church June 24. At Light House Point June 29-July 27. At Camp Barry, D.C., until September. Arthur's Swamp September 29. Poplar Springs Church September 29-October 1. Wyatt's Road October 1. Boydton Plank Road October 27-28. Warren's Raid on Weldon Railroad December 7-12. Dabney's Mills February 5-7, 1865. Appomattox Campaign March 28-April 9. Dinwiddie Court House March 30-31. Five Forks April 1. Namozine Church April 3. Paine's Cross Roads April 5. Sailor's Creek April 6. Appomattox Court House April 9. Surrender of Lee and his army. Moved to Washington, D. C., May. Grand Review May 23.
== Regimental Roster ==
== Regiment Statistical Information ==
Source 	Casualties 	Remarks
Dyer 	None listed	None
Fox 	None listed	
* Fox lists this unit as 3rd on the list of units "sustaining greatest loss in action" (Regular Army Light Artillery Companies) but offers no specific numbers for these commands
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 761, 828, 895, 897, 901, 902, 903, 904, 905, 916, 932, 933, 934, 941, 942, 1695-1696)
* (Page 7)
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