1862 Civil War Discharge 10th Massachusetts -Signed by General Innis N. Palmer

  
He was afterwards on frontier and recruiting duty, and was promoted major, April 5, 1861, having attained the intervening grades. He served from April to July, 1861, in the defenses of Washington, and in the Manassas campaign he commanded the battalion of United States cavalry at the battle of Bull Run, winning promotion to brevet lieutenant-colonel by gallantry there.