Austin and Nicholas Kristoff of Hardeeville announce the birth of a son, Nehemiah Nicholas Kristoff, at 9:58 p.m. Aug. 24 at Hilton Head Hospital. The newborn weighed 6 pounds, 8 ounces, and measured 18 inches. Maternal grandparents are Karen and Sparky Cline of Staunton, Va. Paternal grandparents are Patricia and Michael Kristoff of Hilton Head Island.