Son to Christopher Michael McWilliams and Sarah Anne Haizlip of Leopold, Mo., Saint Francis Medical Center, 2:19 p.m. Tuesday, Aug. 12, 2008. Name, Ayden Dale. Weight, 7 pounds, 6 ounces. First child. Ms. Haizlip is the daughter of Dawn Shell of Marthasville, Mo., and Tim Shell of Marble Hill, Mo. She is a member of the Army National Guard. McWilliams is the son of Joan McWilliams and John McWilliams of Leopold. He is a mechanic at Beussink Transmission.