Complex sentence: Spears has an older brother, Barry "Sonny" Bridges (born 1951), and had an older sister, Sandra Bridges Covington (1947--2007), who died of ovarian cancer.
Split into simpler sentences: Spears has an older brother, Barry "Sonny" Bridges (born 1951). Their older sister, Sandra Bridges Covington (1947--2007), died of ovarian cancer.