Complex sentence: Kelderman learned the game from his father, Harry Kelderman, who was the head coach of Neenah High School soccer team, eventually playing for his father at Neenah from 1983 to 1987.
Split into simpler sentences: Kelderman learned the game from his father, Harry Kelderman, who was the head coach of Neenah High School soccer team. Kelderman played for his father at Neenah from 1983 to 1987.