Complex sentence: His father, a painter and sheriff, was a member of an undefeated Millikin College football team who was later named an All-American under eventual Pro Football Hall of Fame coach Greasy Neale.
Split into simpler sentences: His father, a painter and sheriff, was a member of an undefeated Millikin College football team. He was later named an All-American under eventual Pro Football Hall of Fame coach Greasy Neale.