Organization of the 3rd Corps of the Federal Army of the Potomac during the Civil War Battle of Gettysburg, July 1-3, 1863. The 3rd Corps had 38 infantry regiments and 5 artillery batteries at the Battle of Gettysburg organized into 2 divisions of three brigades each and an artillery brigade.
3rd Corps(monument) Major General Daniel E. Sickles (wounded July 2) (monument)
Major General David B. Birneystrength: 13,000 men, 30 guns casualties: 590 killed, 3,030 wounded, 590 missing, 4,210 total
6th New York Cavalry, Company A
Major General David B. Birney
strength: 5,100 men
casualties: 270 killed, 1,385 wounded, 355 missing, 2,010 total