Organized at Pikesville, Md., near Baltimore, under special authority of the Secretary of War, October 31 to December 31, 1861. Attached to Dix's Division, Baltimore, Md., to March, 1862. Lockwood's Brigade, Middle Department, to May, 1862. 2nd Brigade, Sigel's Division, Department of the Shenandoah, to June, 1862. 2nd Brigade, 2nd Division, 2nd Army Corps, Pope's Army of Virginia, to August, 1862. 3rd Brigade, 2nd Division 2nd Corps, Army of Virginia, to September, 1862. 3rd Brigade, 2nd Division, 12th Army Corps, Army of the Potomac, to October, 1862. 2nd Brigade, 2nd Division, 12th Army Corps, to December, 1862. Frederick, Md., 8th Army Corps, Middle Department, to February, 1863. 3rd Separate Brigade, 8th Army Corps, to June, 1863. 1st Separate Brigade, 8th Army Corps, to May, 1864. 3rd Brigade, 2nd Division, 5th Army Corps, Army of the Potomac, to June, 1865. 2nd Brigade, 2nd Division, 5th Army Corps, to October, 1864.
SERVICE:
Expedition through Accomac and Northampton Counties, Va., November 14-22, 1861. Duty at Baltimore and with Lockwood on Eastern Shore, Va., till May 25, 1862. Ordered to Harper's Ferry, W. Va., May 25. Defence of Harper's Ferry May 28-30. Operations in Shenandoah Valley, Va., till August. Battle of Cedar Mountain August 9. Pope's Campaign in Northern Virginia August 16-September 2. Fords of the Rappahannock August 21-23. Catlett's Station August 22. Plains of Manassas August 27-29 (Reserve). Battle of Bull Run August 30 (Reserve). Maryland Campaign September 6-22. Battles of South Mountain September 14 (Reserve). Antietam September 16-17. Moved to Bolivar Heights September 22, and duty there till December 10. Reconnoissance to Rippon, W. Va., November 9. Detached and assigned to duty at Frederick, Md., and in the Middle Department till May 26, 1864. Joined Army of the Potomac in the field May 26. Rapidan Campaign May 30-June 15. Shady Grove May 30. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16 to October 24, 1864. Jerusalem Plank Road June 21-23. Mine Explosion, Petersburg, July 30. Weldon Railroad August 18-21. Poplar Springs Church September 29-October 2. Yellow House October 2-5. Peebles' Farm October 7-8. Mustered out October 24, 1864. Veterans and Recruits transferred to 1st Maryland Infantry.
Regiment lost during service 1 Officer and 42 Enlisted men killed and mortally wounded and 1 Officer and 73 Enlisted men by disease. Total 117.
