UNION MASSACHUSETTS VOLUNTEERS
21st Regiment, Massachusetts Infantry
Organized at Worcester July 19 to August 19, 1861. Moved to Baltimore, Md., August 23-25; thence to Annapolis, Md., August 29; and duty there till January 6, 1862. Attached to Reno's 2nd Brigade, Burnside's Expeditionary Corps, to April, 1862. 2nd Brigade, 2nd Division, Dept. of North Carolina, to July, 1862. 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Potomac, to April, 1863. 2nd Brigade, 2nd Division, 9th Army Corps, Dept. of the Ohio, to June, 1863. Unassigned, 1st Division, 23rd Army Corps, Dept. of the Ohio, to October, 1863. 1st Brigade, 2nd Division, 9th Army Corps, Dept. of the Ohio, to April, 1864. 2nd Brigade, 1st Division, 9th Army Corps, Army of the Potomac, to June, 1863. 1st Brigade, 1st Division, 9th Army Corps, to September, 1864. 2nd Brigade, 1st Division, 9th Army Corps, to October, 1864.
- -Burnside's Expedition to Hatteras Inlet January 6-February 7, 1862. Battle of Roanoke Island February 8. At Roanoke Island till March 11. Moved to New Berne March 11-13. Battle of New Berne March 14. Expedition to Elizabeth City April 17-19. Battle of South Mills, South Mills, April 19. Duty at New Berne till July 6. Expedition to Pollocksville to relief of 2nd Maryland, May 17. Moved to Newport News, Va, July 6-9; thence to Fredericksburg August 2-4. March to relief of Gen. Pope August 12-15. Pope's Campaign in Northern Virginia August 16-September 2. Battles of Manasass August 29. Bull Run August 30, and Chantilly September 1. Maryland Campaign September-October. Battles of South Mountain September 14, and Antietam September 16-17. At Pleasant Valley, Md., till October 27. Movement to Falmouth, Va., October 27-November 17. Warrenton, Sulphur Springs, November 15. Battle of Fredericksburg December 12-15. "Mud March" January 20-24. 1863. At Falmouth till February 19. Moved to Newport News, Va., and duty there till March 26. Moved to Covington, Ky., March 26-April 1. At Paris, Ky. April 1-5. At Mt. Sterling till July 6, and at Camp Nelson till September 12. March to Knoxville September 12-20. Operations in East Tennessee October 22-November 4. Knoxville Campaign November 4-December 23. Campbell's Station December 16. Siege of Knoxville November 17-December 4. Pursuit of Longstreet December 5-29. Re-enlisted December 29. Veterans absent on furlough January to March, 1864. Moved to Annapolis, Md., and join 9th Army Corps. Campaign from the Rapidan to the James May-June. Battles of the Wilderness May 5-7. Spottsylvania May 8-12. Ny River May 10. Spottsylvania Court House May 12-21. Assault on the Salient May 12. North Anna River May 23-26. North Anna May 24. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16-October 21. Mine Explosion, Petersburg, July 30. Non-Veterans left front August 18 and mustered out August 30, 1864. Weldon Railroad August 18-21. Poplar Springs Church, Peeble's Farm, September 29-October 2. Veterans and Recruits transferred to 36th Massachusetts Infantry October 21, 1864.
Regiment lost during service 11 Officers and 148 Enlisted men killed and mortally wounded and 2 Officers and 89 Enlisted men by disease. Total 250.
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