Complex sentence: Helen Murray was born on February 20,1923 the daughter of James S. Murray, a coal company salesman, and Daisy Piper Murray, who died during an influenza epidemic when Helen was six.
Split into simpler sentences: Helen Murray was born on February 20,1923. She was the daughter of James S. Murray, a coal company salesman, and Daisy Piper Murray, who died during an influenza epidemic when Helen was six.