Marshall served as an aide de camp , assistant adjutant general and military secretary to Gen. Robert E. Lee .
Charles Marshall ( October 3 , 1830 -- April 19 , 1902 ) was a Confederate Army officer during the American Civil War .
officer served as an aide de camp , assistant adjutant general and military secretary to Gen. Robert E. Lee .
Charles Marshall ( October 3 , 1830 -- April 19 , 1902 ) was a Confederate Army officer during the American Civil War .