Complex sentence: While in college, she married twice--both times before the age of 20--first to Spike Jones, who had a promising career as a Navy pilot, then New Orleans lawyer and childhood friend Cecil Burglass.
Split into simpler sentences: While in college, she married twice, both times before the age of 20. She married Spike Jones, who had a promising career as a Navy pilot, then New Orleans lawyer and childhood friend Cecil Burglass.