James Jay Archer (December 19, 1817 – October 24, 1864) was a lawyer and an officer in the United States Army during the Mexican-American War, and he later served as a general in the Confederate States Army during the American Civil War. Taken as a prisoner of war at the Battle of Gettysburg, Archer was the first general officer captured from Gen. Robert E. Lee's Army of Northern Virginia. He was captured on the first day at Gettysburg.
Doubleday- General Abner Doubleday of the Union Army during the American Civil War. He fired the first shot in defense of Fort Sumter, the opening battle of the war.
Winfield Scott Hancock (February 14, 1824 – February 9, 1886) was a career U.S. Army officer and the Democratic nominee for President of the United States in 1880. He served with distinction in the Army for four decades, including service in the Mexican-American War and as a Union general in the American Civil War. Known to his Army colleagues as "Hancock the Superb", he was noted in particular for his personal leadership at the Battle of Gettysburg in 1863.