12th New Hampshire Infantry

Regimental History and Service Record

Organized at Concord and mustered in September 10, 1862. Left State for Washington, D.C., September 27, 1862. Attached to Casey's Division, Military District of Washington, to December, 1862. 2nd Brigade, 3rd Division, 3rd Army Corps, Army of the Potomac, to June, 1863. 1st Brigade, 2nd Division, 3rd Army Corps, Army of the Potomac, to July, 1863. Marston's Command, Point Lookout, Md., District of St. Mary's, to April, 1864. 2nd Brigade, 2d Division, 18th Army Corps, Dept. of Virgin!a and North Carolina, to December, 1864. 2nd Brigade. 3rd Division, 24th Army Corps, Dept. of Virginia, to June, 1865.

SERVICE.--Duty in the Defenses of Washington until October, 1862. Moved to Point of Rocks, Md., October 18; thence to Pleasant Valley October 19. Movement to Warrenton, Va., October 24-November 16, and to Falmouth November 18-24. Battle of Fredericksburg December 12-15. Burnside's 2nd Campaign ("Mud March") January 20-24, 1863. Duty 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

Ordered to Point Lookout, Md., July 26, and duty there guarding prisoners until April 7, 1864. Moved to Yorktown April 7, thence to Williamsburg. Butler's operations on south side of the James River and against Petersburg and Richmond May 4-28. Swift Creek (or Arrowfield Church) May 9-10. Operations against Fort Darling May 12-16. Battle of Drewry's Bluff May 14-16. Bermuda Hundred May 16-27. Moved to White House, thence to Cold Harbor, May 27-31.

• June 1-12, 1864 - The Overland Campaign
  • June 1-12, 1864 - Battles of Cold Harbor, Virginia

Before Petersburg June 15-19. Siege of Petersburg and Richmond June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864 (Reserve). Duty on the Bermuda Front August 26 to December, and in trenches before Richmond until April, 1865. Occupation of Richmond April 3. Guard and Provost duty at Manchester until June. Mustered out June 21, 1865.

Regimental Roster

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Regiment Statistical Information

Regiment Casualty Comparisons by Source

Source	Casualties	Remarks
Dyer	11 Officers and 170 enlisted men killed and mortally wounded 1 Officer and 138 enlisted men killed by disease Total 320	None
Fox	Fox lists this unit as: 92nd on the list of units with losses based on duration of the entire term of service of the unit (1st of the New Hampshire troops)	This feature is not yet available. Check back soon for updates!
WotRWiki Statistics	0 troops killed Includes 0 troops mortally wounded Includes 0 troops killed by disease All others are troops killed in action or under special circumstances	This feature is not yet available. Check back soon for updates!

Legacy

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Sources

• Dyer, Frederick H. A Compendium of the War of the Rebellion. The Dyer Publishing Company (Des Moine, 1908). (Pages 827, 905, 916, 932, 941, 1351-1352)
• Fox, William F. 1840-1909. Regimental Losses in the American Civil War, 1861-1865: A Treatise on the Extent and Nature of the Mortuary Losses in the Union Regiments, With Full and Exhaustive Statistics Compiled From the Official Records on File in the State Military Bureaus and at Washington. Albany: Albany Pub. Co., 1889. (Page 12)