Complex sentence: His three children from his first marriage to Norma Jean Wohlfiel Davis were Peggie, Matthew and David E. Davis III, who is the European Editor at "Autoblog".
Split into simpler sentences: His three children from his first marriage to Norma Jean Wohlfiel Davis were David III, Peggie and Matthew. His son David E. Davis III is the European Editor at "Autoblog".