Complex sentence: While a student at Barnard College she became the roommate of Edie Parker (later married to Jack Kerouac) and their apartment became a gathering place for the Beats during the 1940s, where Joan Vollmer was often at the center of marathon, all night discussions.
Split into simpler sentences: While a student at Barnard College she became the roommate of Edie Parker (later married to Jack Kerouac) and their apartment became a gathering place for the Beats during the 1940s. There Vollmer was often at the center of marathon, all night discussions.