2nd United States Artillery / Battery M

== Regimental History and Service Record ==
* In Texas January, 1861
* Moved to New York April, 1861; thence to Fort Pickens, Fla. 
* Ordered to Washington, D.C., June, 1861
* Attached to Department of Northeastern Virginia / 1st Division (Tyler) / 4th Brigade (Richardson), Brigaded with:
** 1st Massachusetts Infantry
** (I) 12th New York Infantry
** 2nd Michigan Infantry
** (I) 3rd Michigan Infantry
* Franklin's Brigade, Division of the Potomac, to October, 1861
* Franklin's Division, Army of the Potomac, to March, 1862. Artillery Reserve, Army of the Potomac, to May, 1862
* 1st Brigade, Horse Artillery, Artillery Reserve, 5th Army Corps, Army of the Potomac, to September, 1862
* Artillery, Pleasanton's Cavalry Division, Army of the Potomac, to February, 1863
* Reserve Brigade, 1st Division, Cavalry Corps, Army of the Potomac, to June, 1863
* 1st Brigade, Horse Artillery, Army of the Potomac, to August, 1864
* Horse Artillery, Army of the Shenandoah, Middle Military Division, to December, 1864
* Reserve Horse Artillery, Army of the Shenandoah, to April, 1865
* Horse Artillery Brigade, 22nd Army Corps, to August, 1865.
SERVICE.--
* July 16-21, 1861 - The Manassas Campaign
** July 17, 1861 - Occupation of Fairfax Court House, Virginia
** July 21, 1861 - Battle of Bull Run, Virginia
* Duty in the Defenses of Washington, D.C., until March, 1862. 
* Moved to the Virginia Peninsula. 
* March 17-September 2, 1862 - The Peninsula Campaign 
** April 5-May 4, 1862 - Siege of Yorktown, Virginia
** Near Williamsburg May 4. 
** 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
*** July 1, 1862 - Engagement at Malvern Hill, Virginia
* At Harrison's Landing until August 16.
* Action at Malvern Hill August 5.
* Moved to Fortress Monroe, thence to Alexandria August 16-23. 
* September 3-20, 1862 - The Maryland Campaign
** September 7, 1862 - Skirmish at Poolesville, Maryland 
** September 8, 1862 - Skirmish at Poolesville, MarylandNot originally referenced on unit hompeage
** September 9, 1862 - Skirmish at Barnesville, Maryland
** September 9, 1862 - Skirmish at Monocacy Church, Maryland
** September 10-11, 1862 - Skirmishes at Sugarloaf Mountain, Maryland 
** September 12, 1862 - Skirmish at Frederick, Maryland 
** September 13, 1863 - Skirmish at Catoctin Mountain, Maryland
** September 17, 1862 - Battle of Antietam, Maryland
** September 19, 1862 - Actions at Sharpsburg and Shepherdstown/Blackford's/Boteler's Fords, Maryland
** October 1, 1862 - Reconnoissance from Sharpsburg, Maryland to Shepherdstown and Martinsburg, West Virginia
** October 1, 1862 - Skirmish at Shepherdstown, West Virginia
* October 9-12, 1862 - Pursuit of Stuart into Pennsylvania 
* October 12, 1862 - Skirmish at White's Ford, MarylandNot originally referenced on unit hompeage
* October 22, 1862 - Skirmish at Monocacy, Maryland
* Philomont November 1. 
* Union, Bloomfield and Upperville November 2-3. 
* Barbee's Cross Roads November 5.
* Waterloo Bridge November 7. 
* November 10, 1862 - Action at Amissville, Virginia
* Battle of Fredericksburg December 12-15. 
* April 27-May 6, 1863 - The Chancellorsville Campaign
* Stevensburg May 9. 
* Brandy Station or Fleetwood and Beverly Ford June 9. 
* Upperville June 21. 
* June 11-August 1, 1863 - The Gettysburg CampaignNot originally referenced on unit homepage
** June 30, 1863 - Action at Hanover, Pennsylvania 
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
** July 2, 1863 - Action at Hunterstown, Pennsylvania
** July 4, 1863 - Action at Monterey Gap, PennsylvaniaNot originally listed on unit homepage but referenced on Dyer summary
** July 5, 1863 - Action at Smithsburg, Maryland
** July 6, 1863 - Action at Hagerstown, Maryland
** July 6, 1863 - Action at Williamsport, Maryland
** July 8, 1863 - Action at Boonsboro, Maryland
** July 10-12, 1863 - Skirmishes about Hagerstown, Maryland 
** July 14, 1863 - Engagement at Falling Waters, Maryland
* Skirmish near Williamsport, Maryland
* July 24, 1863 - Skirmish at Battle Mountain, VirginiaNot originally listed on unit homepage
Advance to the Rapidan September 13-17. Reconnaissance across the Rapidan September 21-23. Bristoe Campaign October 9-22. James City October 10. Bethesda Church and near Culpeper October 10. Morton's Ford October 11. Near Warrenton, White Sulphur Springs, November 11. Brandy Station October 11. Groveton October 17-18. Gainesville, Buckland's Mills and Catlett's Station October 19. Advance to line of the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Morton's Ford November 26.
* May 4-June 12, 1864 - The Overland Campaign
** May 5-6, 1864 - Engagement at Todd's Tavern, Virginia'''
** May 5-7, 1864 - Battle of the Wilderness, Virginia
*** May 5, 1864 - Combat at Craig's Meeting House, Virginia
** May 8-21, 1864 - Battles of Spotsylvania Court House, Virginia
*** May 8, 1864 - Combat at Alsop's Farm, Virginia
** May 9-24, 1864 - (Sheridan's) Expedition from Todd's Tavern to the James River, Virginia
*** May 9-10 1864 - Skirmish at Beaver Dam Station, Virginia
*** May 11, 1864 - Engagement at Yellow Tavern, Virginia
*** May 12, 1864 - Engagement at Brook's Church, Virginia
** May 26-28, 1864 - Operations on Line of the Pamunkey River, Virginia
*** Demonstration on Little River May 27. 
*** May 27, 1864 - Action at Hanovertown, Virginia
*** Haw's Shop May 28. 
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, Virginia
** June 1-7, 1864 - Battles of Cold Harbor, Virginia
** June 7-24, 1864 - (Sheridan's) Raid to Trevillian Station, Virginia
*** June 11-12, 1864 - Engagement at Trevillian Station, Virginia
Mallory's Cross Roads June 12. Black Creek or Tunstall Station and White House or St. Peter's Church June 21. Siege of Petersburg June 29-August 5. Sheridan's Shenandoah Valley Campaign August 7-November 28. Winchester August 17. Near Kearneysville August 25. 
* September 13, 1864 - Action at Abraham's Creek, Virginia 
Battle of Opequan, Winchester, September 19. Near Cedarville September 20. Front Royal September 21. 
* September 22, 1864 - Skirmish near Milford, Virginia
Waynesboro September 29. Tom's Brook October 8-9. Expedition to Lacey's Springs December 19-22. Sheridan's Expedition from Winchester February 27-March 25, 1865. Occupation of Staunton and action at Waynesboro March 2. Appomattox Campaign March 28-April 12. Dinwiddie Court House March 30-31. Five Forks April 1. Moved to Washington, D.C., and duty there until August. Moved to Fort McHenry, Baltimore, Md.
== Regimental Roster ==
== Regiment Statistical Information ==
* Unit lost during service 5 Officers and 50 Enlisted men killed and mortally wounded and 1 Officer and 118 Enlisted men by disease. Total 174.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 272, 758, 759, 760, 761, 762, 763, 827, 828, 895, 897, 900, 902, 904, 905, 910, 920, 932, 933, 934, 935, 936, 937, 939, 940, 941, 942, 952, 953, 1700)
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