Mosby of Mosby’s Raiders?
I was told his last words were “I guess I wasn’t good enough.”
I think Mosby described himself as a “Partisan Ranger”.
He was definitely “good enough”. One Union general bragged about how he was going to capture Mosby. Mosby captured him while the general was sleeping. Mosby threw back the covers and slapped him on the rump with the flat of a sword.