Companies "A," "D" and "H" organized at New York City September, 1861; Company "B" at Albany, N.Y., September, 1861; Company "C" in Michigan August 21, 1861; Company "E" in New Hampshire September 9, 1861; Company "F" in Vermont September 13, 1861; Company "G" in Wisconsin September 19, 1861; Company "I" in Michigan March 4, 1862, and Company "K" in Michigan March 30, 1862. Most of regiment concentrated at Weehawken, N.J., September, 1861, and moved to Washington, D.C., September 24-25. Mustered in November 29, 1861. Served Unattached, Army of the Potomac, and Martindale's Brigade, Fitz John Porter's Division, Army of the Potomac, to March, 1862. Unassigned, 1st Division, 3rd Army Corps, Army of the Potomac, to May, 1862. 3rd Brigade, 1st Division, 5th Army Corps, to March, 1863. 3rd Brigade, 3rd Division, 3rd Army Corps, to June, 1863. 2nd Brigade, 1st Division, 3rd Army Corps, to September, 1863. 3rd Brigade, 1st Division, 3rd Army Corps, to March, 1864. 2nd Brigade, 3rd Division, 2nd Army Corps, to December, 1864.
Service:
-Duty in the Defences of Washington, D. C., till March, 1862. Moved to Fortress Monroe, Va., March 22. Advance on Yorktown April 1-5. Great Bethel and Howard's Bridge April 4. Warwick Road April 5. Siege of Yorktown April 5-May 4. Battle of Williamsburg May 5. Battle of Hanover Court House May 27. Operations about Hanover Court House April 27-29. Seven days before Richmond June 25-July 1. Battles of Mechanicsville June 26. Gaines' Mill June 27. Peach Orchard and Savage Station June 29. Turkey Bridge, White Oak Swamp, June 30. Malvern Hill July 1. Duty at Harrison's Landing till August 15. Movement to Centreville August 15-28. Pope's Campaign in Northern Virginia August 28-September 2. Battles of Groveton August 29; Bull Run August 30. Maryland Campaign September 6-22. Battle of South Mountain September 14. Battle of Antietam September 16-17. Sharpsburg,
Shepherdstown Ford, September 19. Movement to Falmouth October 29-November 17. Battle of Fredericksburg, Va., December 12-15. Expedition from Potomac Creek to Richard's and Ellis' Fords, Rappahannock River, December 29-30. "Mud March" January 20-24, 1863. At Falmouth till April. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Gettysburg (Pa.) Campaign June 11-July 24. Battle of Gettysburg, Pa., July 1-3. Pursuit of Lee to Manassas Gap, Va., July 5-24. Wapping Heights, Va., July 23. Bristoe Campaign October 9-22. Auburn and Bristoe October 14. 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. Demonstration on the Rapidan February 6-7, 1864. Campaign from the Rapidan to the James River May 4-June 15. Battles of the Wilderness May 5-7; Laurel Hill May 8; Spottsylvania May 8-12; Po River May 10; Spottsylvania Court House May 12-21. Assault on the Salient, "Bloody Angle," May 12. Harris Farm, Fredericksburg Road, May 19. North Anna River May 23-26. On line of the Pamunkey May 26-28. Totopotomoy May 28-31. Hanovertown May 30-31. Cold Harbor June 1-12. Before Petersburg June 16-19. Siege of Petersburg June 16 to December 31, 1864. Jerusalem Plank Road, Weldon Railroad, June 22-23. Demonstration north of the James July 27-29. Deep Bottom July 28-29. Demonstration north of the James at Deep Bottom August 13-20. Strawberry Plains August 14-18. Poplar Springs Church, Peeble's Farm, September 29-October 2. Boydton Plank Road, Hatcher's Run, October 27-28. Expedition to Weldon Railroad December 7-12. Company "A" mustered out August 19, Company "D" mustered out August 28, 1864. Veterans and Recruits assigned to Companies "I" and "K." Veterans of Company "H" to Company "D" September 15. Regiment consolidated with 2nd Regiment Sharpshooters December 31, 1864.
Regiment lost during service 10 Officers and 143 Enlisted men killed and mortally wounded and 1 Officer and 128 Enlisted men by disease. Total 282.
