Complex sentence: The political workload, combined with work pressures, caused Magruder to end employment with Jewel and relocate to California in mid- 1966, where he began a new job at a high salary with the Broadway Stores company.
Split into simpler sentences: The political workload, combined with work pressures, caused Magruder to end employment with Jewel. He relocated to California in mid- 1966, to begin a higher level job with the Broadway Stores company.