Shields the best-known of the group due to his dueling with Abraham Lincoln. Shields was Brigadier General in the Army of the Potomac during the civil war. Fighting in the Shenandoah Valley in March 1862, Shields delivered Stonewall Jackson's only defeat at the Battle of Kernstown and was gravely wounded in the process. Later he went on to become the only man to serve as a senator in three states — Illinois, Minnesota, and Missouri. He also was the governor of the Oregon Territory.