Complex sentence: William "Sonny" Jackson (born September 24,1938) is the former head football coach at Nicholls State University from 1981-1986 where he had a record of 39-28-1.
Split into simpler sentences: William "Sonny" Jackson (born September 24,1938) is the former American football coach. He served as the head football coach at Nicholls State University from 1981 to 1986 where he had a record of 39--28--1.