1st Massachusetts Infantry

== Regimental History and Service Record ==
* Organized at Boston and mustered in Companies "A," "B," "G" and "H" May 23; Companies "D," "F," "K" and "I" May 24; Company "E" May 25, and Company "C" May 27, 1861
* Left State for Washington, D.C., June 15, arriving June 17
* Attached to Department of Northeastern Virginia / 1st Division (Tyler) / 4th Brigade (Richardson), Brigaded with:
** (I) 12th New York Infantry
** 2nd Michigan Infantry
** (I) 3rd Michigan Infantry
** 1st United States Artillery / Battery G
* Hooker's Brigade, Division of the Potomac, to October, 1861
* 1st Brigade, Hooker's Division, Army of the Potomac, to March, 1862
* 1st Brigade, 2nd Division, 3rd Army Corps, Army of the Potomac, to March, 1864
* 1st Brigade, 4th Division, 2nd Army Corps, to May, 1864.
SERVICE.--
* Duty at Camp Banks, Georgeton, D.C., until July 16, 1861. 
* July 16-21, 1861 - The Manassas Campaign
** July 17, 1861 - Occupation of Fairfax Court House, Virginia
** July 18, 1861 - Skirmish at Blackburn's/McLean's/Mitchell's Fords, VirginiaNot originally referenced on unit homepage
** July 21, 1861 - Battle of Bull Run, Virginia
At Fort Albany until August 15. Moved to Bladensburg August 15 and duty there until September 7. Expedition to Lower Maryland September 7-October 7. Moved to Posey's Plantation October 25-27. Duty there and at Shipping Point until April 5, 1862. 
* November 14, 1861 - Affair at the Mouth of Mattawoman Creek, Maryland
* Ordered to Fortress Monroe, Va., April 7, 1862; thence to Yorktown. 
* April 7-September 2, 1862 - The Peninsula CampaignNot explicitly referenced on unit homepage, joined campaign later 
** April 16-May 4, 1862 - Siege of Yorktown, Virginia
*** Affair at Yorktown April 26 (Cos. "A," "H" and "I"). 
** May 5, 1862 - Battle of Williamsburg, Virginia
** May 31-June 1, 1862 - Battle of Seven Pines, Virginia 
** June 25-July 1, 1862 - The Seven Days Battles before Richmond, Virginia
*** June 25, 1862 - Engagement at Oak Grove, Virginia
*** June 29, 1862 - Engagement at Savage's Station, Virginia
*** June 30, 1862 - Engagement at White Oak Swamp, Virginia
*** June 30, 1862 - Engagement at Glendale, Virginia
*** July 1, 1862 - Engagement at Malvern Hill, Virginia
At Harrison's Landing until August 15. Movement to Fortress Monroe, thence to Centreville August 15-26. Bristoe Station or Kettle Run August 27. Catlett's Station August 28. Battles of Groveton August 29 and Bull Run August 30. Duty in the Defences of Washington until December --. At Fort Lyon until Sep tember 13. Near Fairfax Seminary until October 20 and at Munson's Hill until November 1. Duty at Fairfax Station November 2-25. Operations on Orange & Alexandria Railroad November 10-12. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. At Falmouth until April 27. Operations at Rappahannock Bridge and Grove Church February 5-7. 
* 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 until July 24. Moved to New York July 30-August 1. Duty at Governor's Island Ricker's Island and David's Island, New York Harbor until October 15. Moved to Washington October 15 thence to Union Mills, Va., and rejoin Corps October 17. 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. Duty near Brandy Station until May, 1864.
* Demonstration on the Rapidan February 6-7.
* 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 12, 1864 - Assault on the Salient at Spotsylvania Court House, Virginia
*** May 19, 1864 - Engagement at Harris Farm, Virginia
* May 20, 1864 - Ordered home for muster out
** Veterans and Recruits transferred to 11th Massachusetts Infantry
* May 25, 1864 - Mustered out of federal service at expiration of term
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service 8 Officers and 134 En listed men killed and mortally wounded and 1 Officer and 78 Enlisted men by disease. Total 221.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 272, 759, 827, 894, 895, 897, 898, 901, 902, 903, 904, 905, 916, 933, 934, 936, 937, 1248)
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