Stewart Sifakis in his Compendium of the Confederate Armies - Virginia - shows a detachment of the 2nd Va Cav was at Blackburn's Ford on July 17, 1861 but doesn't say who. zThe whole regt was at 1st Bull Run on July 21, 1861, A detachment - unnamed - went to Dranesville on December 20, 1861.
The regt was in the Shenandoah Valley Campaign of 1862 (May-June 1862)