Lisa and Brian McCollum, of Elkridge, announce the birth of their daughter, Natalie Mayfield McCollum, on Aug. 14, 2011, at 12:52 a.m. She weighed 7 pounds, 8 ounces. Her sister is Addison. Her grandparents are Sue Kauffman, of Timonium; Don Gavin, of Baltimore; and Wally and Barbara McCollum, of Columbia.