Organized at Brattleboro and mustered in as 11th Vermont Infantry September 1, 1862. Left State for Washington, D. C., September 7, 1862. Designation of Regiment changed to 1st Heavy Artillery December 10, 1862. (Co. "L" organized July 11, 1863, and Co. "M" October 7, 1863.) Attached to 1st Brigade, Haskins' Division, Military District of Washington, to February, 1863. 1st Brigade, Haskins' Division, 22nd Army Corps, Defences of Washington, to May, 1864. 2nd Brigade, 2nd Division, 6th Army Corps, Army of the Potomac, and Army of the Shenandoah, Middle Military Division, to June, 1865. Middle Department, 8th Corps, to August, 1865.
SERVICE:
Duty in the Defences of Washington, D. C., north of the Potomac September, 1862, to May, 1864. Company "A" at Fort Lincoln September 27 to November 17, 1862, then at Fort Totten till March, 1864, and at Fort Lincoln till May, 1864. Company "B" at Forts Massachusetts and Stevens till March, 1864, then at Fort Totten till May, 1864. Companies "C" and "D" at Fort Saratoga till November 17, 1862, then at Fort Massachusetts till March, 1864. Company "C" at Fort Stevens till May, 1864. Company "D" at Fort Saratoga till May, 1864. Company "E" at Fort Totten till November 17, 1862, then at Fort Slocum till May, 1864. Company "F" at Fort Bunker Hill till November 17, 1862, then at Fort Slocum till March, 1864, and at Fort Thayer till May, 1864. Company "G" at Fort Lincoln till November 17, 1862, then at Fort Slocum till May, 1864. Company "H" at Fort Slocum till March, 1864, then at Fort Bunker Hill till May, 1864. Company "I" at Fort Thayer till November 17, 1862, then at Fort Massachusetts till March, 1864, and at Fort Bunker Hill till May, 1864. Company "K" at Fort Totten till May, 1864. Company "L" at Fort Lincoln till May, 1864. Company "M" at Fort Bunker Hill till May, 1864. Ordered to join army in the field May 12, 1864. Moved to Belle Plains, Va., and join 6th Army Corps at Spottsylvania Court House, Va., May 15. Spottsylvania Court House May 15-21. North Anna River May 23-26. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Before Petersburg June 17-July 9. Jerusalem Plank Road June 22-23. Moved to Washington, D. C., July 9-11. Repulse of Early's attack on Fort Stevens July 11-12. Snicker's Gap Expedition July 15-23. Sheridan's Shenandoah Valley Campaign August 7-November 28. Near Charlestown August 21-22. Gilbert's Ford, Opequan, September 13. Battle of Opequan, Winchester, September 19. Fisher's Hill September 22. Battle of Cedar Creek October 19. Duty at Strasburg till November 9, and at Kernstown till December 9. Moved to Petersburg, Va., December 9-12. Siege of Petersburg December 13, 1864, to April 2, 1865. Fort Fisher, Petersburg, March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Pursuit of Lee. Duty at Burkesville till April 23. March to Danville April 23-27, and duty there till May 18. At Manchester May 19-24, and at Munson's Hill, Washington, till June 24. Corps Review June 8. Old members mustered out June 24, 1865. Veterans and Recruits consolidated to a Battalion of four Companies, and duty at Fort Foote, Md., Defences of Washington, till August. Mustered out August 25, 1865.
Regiment lost during service 10 Officers and 154 Enlisted men killed and mortally wounded and 2 Officers and 410 Enlisted men by disease. Total 576.
Predecessor unit:
VERMONT VOLUNTEERS.
11th REGIMENT INFANTRY.
Organized at Brattleboro September 1, 1862. Left State for Washington, D. C., September 7. Attached to 1st Brigade, Haskins' Division, Military District of Washington, to December, 1862. Duty in the Defences of Washington north of the Potomac. Designation of Regiment changed to 1st Vermont Heavy Artillery December 10, 1862. (See 1st Heavy Artillery.)
