Retired Air Force Col. William C. Harrison Jr., who saw the dawn of the nuclear age up close as he dropped one of the first atomic bombs on an island in the Pacific, died early this week. He was 83. He will be buried at 10 a.m. Friday at Dallas-Fort Worth National Cemetery. A memorial service will follow at noon Friday at Ridglea Baptist Church. Col. Harrison, a 30-year resident of Fort Worth who was well-known in golfing and flying circles on the west side, witnessed first-hand the building of America's nuclear might, from one small squadron in the 1940s...