An accident Thursday in Dallas County resulted in moderate injuries for a Grain Valley resident.  According to the State Highway Patrol, Nathan Gumm, 24, was northbound on Highway 65 when he stopped to make a turn.  He was rear-ended by Kathy Todd, 45, of Cross Timbers.  Gumm was transported to Mercy Hospital in Springfield.  The crash occurred about three miles north of Urbana.