Complex sentence: Her older brother Gene played college football as a tight end, first at Duke and then Middle Tennessee; after he graduated from Middle Tennessee in 2009, he returned to Delaware to work in their father's company.
Split into simpler sentences: Her older brother, Gene, played college football as a tight end, first at Duke, then at Middle Tennessee. After he graduated from Middle Tennessee in 2009, he returned to Delaware to work in their father's company.