Organized at Baltimore, Md., August and September, 1862. Moved to the Antietam September 18, 1862. Attached to Kenly's Maryland Brigade, Defences Upper Potomac, 8th Army Corps, Middle Department, to March, 1863. 1st Brigade, 1st Division, 8th Army Corps, to June, 1863. Maryland Brigade, French's Division, 8th Army Corps, to July, 1863. 3rd Brigade, 3rd Division, 1st Army Corps, Army of the Potomac, to December, 1863. 2nd Brigade, 3rd Division, 1st Army Corps, to March, 1864. 3rd Brigade, 2nd Division, 5th Army Corps, to June, 1864. 2nd Brigade, 2nd Division, 5th Army Corps, to May, 1865.
SERVlCE.-Defence of Williamsport, Md., September 20-21, 1862. Duty between Williamsport and Hagerstown till December 11. Moved to Maryland Heights December 11-12, and duty there till April 9, 1863. At Bolivar Heights till April 30. Moved to Grafton and Clarksburg, W. Va., to repel invasion. Operations against Jones and Imboden May 1-26. Return to Maryland Heights May 26, and duty there till June 30. Retreat to Frederick, Md., June 30. Guard bridges over Monocacy till July 6. Reoccupation of Maryland Heights July 7. Joined 1st Army Corps, Army of the Potomac, near Boonsborough, Md., July 10. Pursuit of Lee to Warrenton, Va., July 12-24. Funkstown July 12-13. At Warrenton Junction July 25-27. Near Rappahannock Station August 4 to September 16. Advance to the Rapidan September 16-18. Bristoe Campaign October 9-22. Bristoe Station October 14. Haymarket October 19. Guard Orange and Alexandria Railroad October 24 to November 23. Mine Run Campaign November 26-December 2. Near Culpeper till May, 1864. Demonstration on the Rapidan February 6-7. Campaign from the Rapidan to the James May 3-June 15. Battles of the Wilderness May 5-7. Laurel Hill May 8. Spottsylvania May 8-12. Spottsylvania Court House May 12-21. Assault on the Salient May 12. Harris Farm, or Fredericksburg Road, May 19. North Anna River May 23-26. Jericho Ford May 23. 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. Jerusalem Plank Road June 22-23, 1864. Mine Explosion, Petersburg, July 30. Reserve, Weldon Railroad August 18-21. Poplar Grove Church September 29-October 2. Yellow House October 2-5. Peeble's Farm October 7-8. Davis House October 8. Boydton Plank Road, Hatcher's Run, October 27-28. Warren's Raid on Weldon R. R. December 7-12. Dabney's Mills, Hatcher's Run, February 5-7, 1865. Appomattox Campaign March 28-April 9. Lewis Farm, near Gravelly Run, March 29. Boydton and White Oak Roads March 30-31. Five Forks April 1. Fall of Petersburg April 2. Pursuit of Lee April 3-9. Appomattox Court House April 9. Surrender of Lee and his army. March to Washington, D. C., May 1-12. Grand Review May 23. Mustered out May 31, 1865.
Regiment lost during service 1 Officer and 78 Enlisted men killed and mortally wounded and 1 Officer and 109 Enlisted men by disease. Total 189.
