...aids had left me, on one service and another; whereupon, turning to give an order, I found no one but this young stranger at my side. I then asked him if he would oblige me by bearing a despatch to Gen. McClellan , and by acting as my aid, until some of my staff should come up. He rode off with alacrity, through a most exposed position, returned with the answer, and served me as an aid through the remain der o...