 It next served on picket duty near Fairfax Court House until January 20, 1863, where it participated in the repulse of Stuart's cavalry on December 29, 1862.The regiment was next stations at Union Mills from March 24 to June 1, then Bristoe Station, Catlett's Station and Manassas until June 15, when it returned to Union Mills.On June 25, the brigade was assigned as the 3rd Brigade, 3rd Division, I Corps, and ordered to form the rear guard of the Army of the Potomac as it marched north after Robert E. Lee's Army of Northern Virginia.