he regiment left the State November 29 1861 and served in the defenses of Washington D. C. from December 1861 in the Department of the Shenandoah from March 1862 in the Middle Department 8th Corps from June 1862 in the 5th Brigade Pleasanton's Division of Cavalry Army of the Potomac mounted from August 1862 in the 1st Brigade same division from December 1862 in the 1st Brigade 1st Division Cavalry Corps Army of the Potomac from February 1863 in the 2d Brigade 3d Division Cavalry Army of the Potomac from March 1864 in the Army of the Shenandoah from October 1864 and with the Army of the Potomac from March 1865. The regiment commanded by Col. Edmund M. Pope was mustered out and honorably discharged June 27 1865 at Alexandria Va. having lost by death during its service killed in action 8 officers 60 enlisted men died of wounds received in action 5 officers 32 enlisted men died of disease and other causes 6 officers 213 enlisted men total 19 officers 305 enlisted men aggregate 324 of whom 3 officers and 70 enlisted men died in the hands of the enemy.