Complex sentence: Theodore Pitcairn (November 5,1893--December 17,1973), born in Philadelphia, Pennsylvania, the son of PPG Industries founder John Pitcairn, was a clergyman, theologian, art collector and philanthropist.
Split into simpler sentences: Theodore Pitcairn (November 5,1893--December 17,1973) the son of PPG Industries founder John Pitcairn, was born in Philadelphia, Pennsylvania. He was a clergyman, theologian, art collector and philanthropist.