...ttalions and companies in the army of Northern Virginia, and authorized to organize regiments and appoint officers for them and report to Maj.-Gen. Isaac R. Trimble. He left Richmond, took horse at Charlottesville , and rode rapidly through the country to Gettysburg, where he arrived on the evening of July 2d. He reported his orders to Trimble, who reported them to Ewell. Ewell had succeeded Jackson in comm...