Matilda "Tillie" Pierce Alleman was 15 at the time of the Battle of Gettysburg. Her memoir "At Gettysburg, Or What A Girl Saw And Heard Of The Battle" is one of the best-known accounts of a civilian's experience of a Civil War battle.
George Brinton McClellan (December 3, 1826 – October 29, 1885) Major general during the American Civil War. He organized the famous Army of the Potomac & served briefly as the general-in-chief of the Union Army. McClellan played an important role in raising a well-trained & organized army for the Union. Although he was meticulous in his planning & preparations, these characteristics may have hampered his ability to challenge aggressive opponents in a fast-moving battlefield environment.
Major General George E. Pickett, C.S.A. Known for the futile "Pickett's Charge" across open fields at Gettysburg into the teeth of the Union artillery, he was blamed for the loss of the "flower of the South." Many men died that day including descendants of George Washington. Pickett never recovered as a result of this debacle.