 Helen Lukens Jones was the first woman to travel by automobile up the Mount Wilson Toll Road Company's nine-mile (14 km)-long, narrow, 10% grade road that went from Eaton Canyon through Henninger Flats and then to the summit.Decades after her father's death, Helen sold his records, diaries and papers to the Huntington Library which are now used in various studies.The collection is over 3,600 pieces.