Organized at Lynnfield August 1, 1862. Left State for Washington, D. C., August 22. Attached to 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Potomac, to April, 1863; Dept. of the Ohio to June, 1863; Army of the Tennessee to August, 1863, and Dept. of the Ohio to April, 1864. 1st Brigade, 1st Division, 9th Army Corps, Army of the Potomac, to May, 1864. Acting Engineers, 1st Division, 9th Army Corps, to July, 1864. 1st Brigade, 1st Division, 9th Army Corps, to September, 1864. 1st Brigade, 2nd Division, 9th Army Corps, to June, 1865.

SERVICE:
-March into Maryland September 6-12, 1862. Battles of South Mountain, Md., September 14, and Antietam September 16-17. Duty at Pleasant Valley till October 27. Movement to Falmouth, Va., October 27-November 19. 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., February 19, thence to Covington, Ky., March 26-30. Moved to Paris April 1, and to Mt. Sterling April 3. To Lancaster May 6-7, thence to Crab Orchard May 23, and to Stanford May 25. Movement to Vicksburg, Miss., June 3-14. Siege of Vicksburg June 14-July 4. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. At Milldale till August 6. Moved to Cincinnati, Ohio, August 6-14. At Covington, Ky., till August 18. March to Nicholasville August 18-25, and to Crab Orchard September 9-11. March over Cumberland Mountains to Knoxville, Tenn., thence to Lenoir Station October 2-29. Knoxville Campaign November 4-December 23. At Lenoir Station till November 14. Campbell's Station November 16. Siege of Knoxville November 17-December 4. Pursuit of Longstreet December 5-19. Operations in East Tennessee till March 20, 1864. Movement to Annapolis, Md., March 20-April 7. Rapidan Campaign May-June. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Ny River May 10; Spottsylvania C. H. May 12-21. Assault on the Salient May 12. North Anna River May 23-26. On 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, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Peebles' Farm September 29-October 2. Boydton Plank Road, Hatcher's Run, October 27-28. Fort Stedman March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Occupation of Petersburg April 3. March to Cumberland Church April 4-10. Moved to City Point, thence to Alexandria April 20-28. Grand Review May 23. Mustered out June 9, and discharged from service June 27, 1865.
Regiment lost during service 10 Officers and 138 Enlisted men killed and mortally wounded and 1 Officer and 100 Enllsted men by disease. Total 249.