Jill and Wade Thatcher of Bluffton announce the birth of a son, Brock Ephrem Thatcher, at 8:34 a.m. March 29 at Hilton Head Hospital. The newborn weighed 8 pounds, 14 ounces, and measured 19.5 inches. He has a brother, Van, 3. Maternal grandparents are Sharon and Robin Maheu of Tennessee, and Jane and Art Symonds of Connecticut. Paternal grandmother is Janet Smith of Orlando, Fla., and the late Marsh Thatcher.